Patent Grant
12075986
This disclosure generally relates to vials and vessels for collecting and storing biological samples. More specifically, the present disclosure relates to systems and kits for the collection and preservation of biological samples for future testing in a laboratory or other biological sample analysis facility.
Field collection of biological samples can provide scientists, physicians, geneticist, epidemiologists, or similar personnel with invaluable information. For example, access to a fresh sample of a patient's blood, purulent discharge, or sputum can help a physician or epidemiologist to isolate or identify a causative agent of infection. Similarly, a saliva sample can permit a scientist or geneticist access to the requisite nucleic acid for genetic sequencing, phylotyping, or other genetic-based studies. In the foregoing examples, in addition to many other situations, it is desirable to work with a fresh biological sample to ensure procurement of accurate results. However, isolation of the probative composition (e.g., nucleic acid, proteins, chemicals, etc.) often requires use of specialized equipment and often benefits from controlled laboratory conditions.
It can be inconvenient and sometimes improbable to require patients/individuals to travel to a biological sample collection center having the appropriate equipment and desirable controlled environment for sample preparation. Similarly, it may be difficult for personnel to directly access the patient/individual, particularly if the sample size is large and/or geographically diverse (e.g., as can be found in large genetic studies of thousands of individuals across an entire country, ethnic population, or geographic region). Further complicating this issue, it is often beneficial to immediately process any procured biological sample, and field personnel may be limited by lack of access to appropriate specialized equipment or to a controlled environment for high-fidelity sample processing.
Some biological sample collection devices and kits have addressed some of the foregoing issues. For example, some commercial kits provide a user with a vial for receiving a biological sample and a preservation reagent that can be added to the collected biological sample, acting to preserve elements within the biological sample (to a certain extent and for a period of time). However, implementations of self-collection systems often rely on inexperienced or untrained individuals to deposit the biological sample into the receiving vessel. This presents a number of problems, including, for example, technical training and precise measurements often required to properly preserve the biological sample for later processing. In the absence of such, it is important to provide a biological sample collection system that can be easily implemented by a novice user and which can preserve the received biological sample for later processing.
Accordingly, there are a number of disadvantages with biological sample collection and preservations systems that can be addressed.
Implementations of the present disclosure solve one or more of the foregoing or other problems in the art with kits, apparatuses, and methods for collecting and preserving a biological sample. In particular, one or more implementations can include a biological sample collection system—or a kit including the same—for collecting and preserving a biological sample.
In some embodiments, a biological sample collection system can include a sample collection vessel having an opening for receiving a biological sample, a selectively movable valve comprising a core and a collar disposed about the core that is configured to at least partially associate with the opening of the sample collection vessel, and a sealing cap configured to associate with the selectively movable valve and with the sample collection vessel. The sealing cap can include a reagent chamber for storing a measure of sample preservation reagent. Associating the sealing cap with the sample collection vessel causes a physical rearrangement of the core relative to the collar such that a fluid vent associated with the core is moved into fluid communication with the reagent chamber, thereby permitting sample preservation reagent to pass from the regent chamber to the sample collection vessel.
In other embodiments, a biological sample collection system can include a sample collection vessel having an opening for receiving a biological sample and a plug assembly. The plug assembly can include a post having a fluid vent that is configured to at least partially associate with the opening of the sample collection vessel and a plug associated with the post that obscures the fluid vent in a closed configuration of the plug assembly. The biological sample collection system can additionally include a sealing cap configured to associate with the plug assembly and with the sample collection vessel. The sealing cap can include a reagent chamber for storing a measure of sample preservation reagent. Associating the sealing cap with the sample collection vessel can cause a physical rearrangement of the plug assembly such that the plug is removed from association with the post, thereby permitting sample preservation reagent to pass from the regent chamber to the sample collection vessel.
The present disclosure also includes methods for collecting and preserving a biological sample. An exemplary method includes receiving a biological sample at a disclosed sample collection system and associating a sealing cap with the sample collection vessel, for example, to cause a selectively movable valve associated with the sealing cap to open and thereby release sample preservation reagent held within the sealing cap into the sample collection chamber or to cause the plug of a plug assembly to dislodge, thereby releasing reagent held within the sealing cap into the sample collection chamber.
Accordingly, systems, methods, and kits for collecting a biological sample are disclosed herein. This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an indication of the scope of the claimed subject matter.
Additional features and advantages of the disclosure will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the disclosure. The features and advantages of the disclosure may be realized and obtained by means of the instruments and combinations particularly pointed out in the appended claims. These and other features of the present disclosure will become more fully apparent from the following description and appended claims or may be learned by the practice of the disclosure as set forth hereinafter.
In order to describe the manner in which the above recited and other advantages and features of the disclosure can be obtained, a more particular description of the disclosure briefly described above will be rendered by reference to specific embodiments thereof, which are illustrated in the appended drawings. It is appreciated that these drawings depict only typical embodiments of the disclosure and are not therefore to be considered to be limiting of its scope. The disclosure will be described and explained with additional specificity and detail through the use of the accompanying drawings in which:
Embodiments of the present disclosure address one or more problems in the art of systems, kits, and/or methods for collecting and preserving a biological sample. A biological sample can be collected and its contents evaluated for various reasons, including, for example, identifying or characterizing a causative agent of disease (e.g., for treatment of the affected individual, for epidemiological reasons, etc.) or for genetic analysis of a subject's nucleic acid (e.g., genetic phylotyping, gene expression studies, genome sequencing, etc.). In most instances, including within the foregoing examples, it is desirous that the fidelity of the biological sample be maintained so that it retains its probative value. However, collecting and preparing biological samples for analysis has traditionally been a complex endeavor for the skilled technician or specialized professional. This is problematic for obvious reasons, including the time and cost associated with individually collecting and transporting biological samples, particularly when the subjects reside in disparate rural locations and require service from personnel with the proper skill set to properly collect and preserve the biological sample.
Embodiments of the present disclosure provide sample collection and preservation systems and kits, and methods for using the same, which address one or more of the foregoing problems. For example, utilizing systems, kits, and methods for collecting and preserving biological samples, as disclosed herein, removes the need of specialized personnel when collecting and initially preserving a biological sample. Furthermore, the disclosed embodiments simplify sample collection and preservation, which decreases the likelihood that even an unskilled user will err when collecting and preserving a biological sample.
As an illustrative example of the foregoing, biological sample collection kits disclosed herein include at least a two-piece sample collection and preservation system. A first portion includes a sample collection vessel or vessel, which can be detachably associated with a funnel. When used, the funnel acts to guide the receipt of a biological sample from a user into the sample collection chamber of the collection vessel or vessel. The funnel can also make it easier for a user to engage the collection vessel and deposit a biological sample into the sample collection chamber. After depositing the requisite amount of biological sample (which may be indicated by a mark on the sample collection vessel), a user can remove the funnel (if used) and associate the second portion of the two-piece sample preservation system—e.g., a sealing cap associated with a selectively movable valve or plug assembly—with the collection vessel. The reagent chamber of the sealing cap is pre-filled with a predetermined amount of sample preservation reagent, and as the sealing cap is drawn down to seal the received biological sample within the sample collection chamber of the collection vessel, the selectively movable valve or plug assembly enters an open configuration and the preservation reagent is released from the reagent chamber, through fluid vents in the valve core or plug assembly post, and into the sample collection chamber where it mixes with and preserves the received biological sample.
As described in more detail below, the selectively movable valves and valve assemblies can independently be opened (depending on the embodiment incorporating the same) to release reagents from the reagent chamber into the sample collection chamber.
With respect to embodiments having a selectively movable valve, the collar of the selectively movable valve is mechanically interlocked (e.g., via a friction fit) with the sealing cap such that the collar moves in unison with the sealing cap. The collar can be annular and surround the valve core forming a fluid tight connection therebetween. A flange associated with the core is sized and shaped to fit over the opening of the sample collection vessel (or structure associated therewith), preventing its ingress into the sample collection chamber. Upon association of the sealing cap with the sample collection vessel, the core flange abuts the opening of the sample collection chamber. As the sealing cap is further secured to the sample collection vessel (e.g., by threaded engagement), the collar moves in conjunction with the sealing cap, and the core remains stationary in relation to the sample collection vessel. In this way, the core moves (e.g., translates longitudinally) relative to the collar and sealing cap, causing the selectively movable valve to open (e.g., by undergoing a physical rearrangement). The independent movement of core relative to the sealing cap can be enabled by, for example, the force (e.g., frictional force or force required to overcome a mechanical interlock) between the core and the collar (which forms a fluid tight connection) being less than the force between the attachment mechanisms of the sealing cap and sample collection device. When moved to an open configuration, the previously obstructed fluid vents provided by the core are at least partially unobstructed, thereby creating a conduit for communicating the sample preservation solution from the reagent chamber of the sealing cap into to the sample collection chamber.
It should be appreciated that in some embodiments, opening of the selectively movable valve is reversible. That is, the selectively movable valve can be moved from an open configuration to a closed configuration. For example, embodiments of the disclosed apparatus can be configured so that the core can be manually repositioned within the collar (e.g., by applying a longitudinal force against the head member of the core and toward the collar), thereby returning the selectively movable valve to the closed configuration.
With respect to embodiments having a plug assembly, a collar of the plug assembly is mechanically interlocked (e.g., via a friction fit) with the sealing cap such that the collar moves in unison with the sealing cap. The collar can be annular and surround the post of the plug assembly and may form a fluid tight connection therebetween. Additionally, or alternatively, a plug can be positioned within the aperture formed by the collar, forming a fluid tight connection therebetween. The plug can have a head sized and shaped to overlay a portion of the top surface of the collar (forming a fluid tight connection therebetween) and/or can have a plug body sized and shaped to fit within the aperture formed by the collar such that a fluid tight connection is formed between the plug body and a sidewall of the collar (e.g., a sidewall defining the aperture). A flange associated with the post is sized and shaped to fit over the opening of the sample collection vessel (or structure associated therewith), preventing its ingress into the sample collection chamber. Upon association of the sealing cap with the sample collection vessel, the post flange abuts the opening of the sample collection chamber. As the sealing cap is further secured to the sample collection vessel (e.g., by threaded engagement), the collar moves in conjunction with the sealing cap, and the post remains stationary. In this way, the post moves (e.g., translates longitudinally) relative to the collar and sealing cap, causing the post to abut against and apply pressure to the plug, eventually causing the plug to dislodge from the collar and enter into the reagent chamber. The independent movement of post relative to the sealing cap can be enabled by, for example, the force (e.g., frictional force or force required to overcome a mechanical interlock) between the post and the collar and/or plug (which forms a fluid tight connection) being less than the force between the attachment mechanisms of the sealing cap and sample collection device. When moved to an open configuration, the previously obstructed fluid vent formed by the post is at least partially unobstructed, thereby creating a conduit for communicating the sample preservation solution from the reagent chamber of the sealing cap into to the sample collection chamber.
As can be appreciated from the foregoing, in addition to alternative and/or additional embodiments provided herein, the systems, kits, and methods of the present disclosure can be used by skilled or unskilled individuals with reduced likelihood of error associated with collecting and at least initially preserving a biological sample. Accordingly, implementations of the present disclosure can reduce the cost associated with procuring biological samples for diagnostic, scientific, or other purposes and can increase the geographic reach of potential sample collection areas without the need of establishing the necessary infrastructure (e.g., controlled environments conducive to sample collection and preservation, skilled personnel to physically collect, transport, and/or preserve the biological samples, etc.).
As used herein, the term “biological sample” can include any cell, tissue, or secretory fluid (whether host or pathogen related) that can be used for diagnostic, prognostic, genetic, or other scientific analysis. This can include, for example, a human cell sample such as skin. It can also include a non-human cell sample that includes any of a bacterium, virus, protozoa, fungus, parasite, and/or other prokaryotic or eukaryotic symbiont, pathogen, or environmental organism. The term “biological sample” is also understood to include fluid samples such as blood, urine, saliva, and cerebrospinal fluid and extends to other biological samples including, for example, mucus from the nasopharyngeal region and the lower respiratory tract (i.e., sputum).
As used herein, the “probative component” of the biological sample refers generally to any protein, nucleic acid, surface moiety, or other compound that can be isolated from the biological sample. Preferably, the probative component is or includes nucleic acid, more preferably DNA. In a preferred embodiment, the biological sample is or includes saliva, which presumptively contains a preferable probative component in the form of the user's genetic material (e.g., DNA and RNA).
Sample Collection Systems and Kits Having a Selectively Movable Valve
In one embodiment, a biological sample is collected, preserved, and stored in a collection vessel as part of a multi-piece sample collection system or kit. An example of a sample collection device similar to the embodiment illustrated in FIGS. 1-4 is set forth in U.S. Design application No. 29/698,615, filed Jul. 18, 2019, which is incorporated by reference. An example of a sample collection device similar to the embodiment illustrated in FIGS. 5-7 is set forth in U.S. Design application No. 29/698,614, filed Jul. 18, 2019, which is incorporated by reference.
As shown in
For example,
In some embodiments, the reagent within the reagent chamber 111 includes a preservation or buffering solution that protects the integrity of the probative component of the biological sample prior to purification or testing. Examples of preservation reagents that can be used in conjunction with the sample collection systems described herein are disclosed in U.S. Pat. No. 10,174,362, US Pat. Pub. No. 2019/0062806, and WO 2020/102570, which are incorporated by reference. Preservation reagents are typically chemical solutions and may contain one or more salts (e.g., NaCl, KCl, Na2HPO4, KH2PO4, or similar, and which may, in some implementations, be combined as a phosphate buffered saline solution, as known in the art), lysing agents (e.g., detergents such as Triton X-100 or similar), chelating agents (e.g., ethylenediaminetetraacetic acid (EDTA), ethylene glycol-bis(R-aminoethyl ether)-N,N,N′,N′-tetraacetic acid (EGTA), or similar), distilled water, or other reagents known in the art.
In one or more embodiments, the reagent or buffering solution stabilizes at least one probative component within the sample (e.g., nucleic acids, such as DNA and RNA, protein, etc., and combinations thereof) during transfer, transportation, and/or storage at a laboratory, clinic, or other destination. After the preservation solution is added, the sample can be stored at or below room temperature for weeks or months without significant loss of the probative component. That is, the sample can still be utilized for diagnostic, genetic, epidemiologic, or other purposes for which it was collected after storage for weeks or months in the preservation solution.
With continued reference to
In some embodiments, the connection mechanism between the funnel and collection vessel is different than the connection mechanism between the solution cap and the collection vessel. For example, the funnel may be press fit or snap fit onto the collection vessel, whereas the solution cap is rotationally secured through engagement of complementary threads located on an exterior portion of the collection vessel and an interior portion of the solution cap or vice versa. Regardless of the attachment mechanism used, a sample preservation fluid can be introduced into the sample collection chamber 103 and mixed with the deposited biological sample as a result of the sealing cap 110 being attached to the sample collection vessel 102. As provided earlier, this can be due to the selectively movable valve 104 opening and allowing reagent to be released through fluid vent 116 defined by the open valve 104 and into the sample collection chamber 103.
The sealing cap 110 is configured to receive a measure of reagents into the reagent chamber 111, and as shown by the cross-sectional views of the assembled sample collection system 100 in
As further illustrated by
That is, the fluid vent(s) 116 can be obstructed by the collar 108 of the selectively movable valve 104 when the valve 104 is in a closed configuration, as illustrated in
It should be appreciated that in some embodiments, the fluid vent(s) and/or structure of the core can beneficially act as an agitator of fluids entering and/or traversing between the sample collection chamber and the sealing cap.
As the complementary threads 114, 112 between the sealing cap 110 and the sample collection vessel 102 are inter-engaged and the sealing cap 110 is advanced towards the sample collection vessel 102, the proximal flange 107 of the core 106 engages the upper lip of the sample collection tube defining the opening 105 thereof. As the sealing cap 110 is further secured to and moved toward the sample collection vessel 102 (e.g., by threaded engagement), the collar 108 moves in conjunction with the sealing cap 110, and the core 106 remains stationary relative to the sample collection vessel 102. In this way, the collar 108 is displaced longitudinally relative to the core 106, causing the selectively movable valve assembly 104 to enter an open configuration (e.g., by undergoing a physical rearrangement as shown in
The fluid channels/vents 116 formed within the core 106, and the various other components of the core 106 discussed above are illustrated in the perspective views of an exemplary core 106 in
As the core 106 transitions from the closed configuration to the open configuration, an annular retention element 113 disposed on the body of the core 106 forms a fluid tight seal with the inner sidewall of the collar 108. Upon fully entering the open configuration, the annular retention element 113 is flush with the top surface of the collar 108 and maintains a fluid-tight connection therebetween. Accordingly, there is no pooling of sample preservation reagent (from the fluid chamber) between the interior sidewall of the collar 108 and the exterior sidewall of the core 106. Instead, the sample preservation reagent is directed from the reagent chamber 111, through the fluid vents 116 formed within the core 106, and into the sample collection chamber 103 it mixes with and preserves the received biological sample. In this way, the valve assembly 104 can move from a closed configuration to an open configuration when the sealing cap 110 is sealed onto the sample collection vessel 102.
In some embodiments, the resistive force derived from the engagement of the collar 108 with the chamber sidewall is the result of an interference fit formed between the collar 108 and the chamber sidewall. The interference fit can, in some embodiments, be a fluid-tight fit.
In some embodiments, the rotational distance required to open the selectively movable valve 104 is proportional to the distance required to at least partially unobstruct the fluid vent 116. This distance may be the same or less than the distance traversed by the sealing cap 110 from initial engagement of the connection members 114, 112 to a sealed position of the cap 110 and vessel 102. However, it should be appreciated that although a plurality of fluid vents 116 are illustrated in the Figures, in some embodiments there can be fewer (e.g., a single fluid channel/vent or more than four fluid channels/vents).
Sample Collection Systems and Kits Having a Plug Assembly
Referring now to
The post 206 defines a plurality of fluid vents 212 that pass uninterrupted through the body of the post 206. A cylindrical upper portion of the post is sized and shaped to fit within the aperture defined by the hollow collar 202. A leading edge 208 of the upper portion of the post 206 is configured to associate with a bottom surface (e.g., the lower flange 207) of the plug 204. In the embodiment shown in
When provided to a user for collecting a biological sample (typically saliva), the plug-disc device (e.g., device 200) is included in two parts: (1) the sample collection vessel 201 and (2) the sealing cap 210, which includes the seal assembly (in a sealed configuration) forming a fluid-tight seal over the reagent chamber where it retains preloaded sample preservation solution. The user can deposit the biological sample within the sample collection tube, and following use, the sealing cap is associated with the sample collection tube to seal the received biological sample.
Upon association of the sealing cap 210 with the sample collection vessel 201, the base portion or flange 209 of the post 206 engages the upper lip of the sample collection vessel defining the opening thereof. As the sealing cap 210 is further secured to and moved toward the sample collection vessel 201 (e.g., by threaded engagement), the hollow collar 202 moves in conjunction with the sealing cap 210, and the post 206 remains stationary relative to the sample collection vessel 201. In this way, the hollow collar 202 is displaced longitudinally with respect to the post 206, and this causes the leading edge 208 (e.g., crown portion) of the post 206 to press against the bottom side (e.g., lower flange 207) of the plug 204. At some point, the rotational force of tightening the sealing cap 210 is translated into a force sufficient to cause the plug 204 to disengage from the hollow collar 202. At first, the upper flange 205 is translated away from the hollow collar 202, thereby breaking the fluid-tight seal formed therebetween, while the second, lower flange 207 remains in contact with the sidewall of the hollow collar 202. Eventually, however, the post 206 presses—and moves—the plug 204 such that the lower flange 207 becomes disengaged from the sidewall, causing the plug 204 to be ejected into the reagent chamber of the sealing cap 210.
Once the plug 204 is disengaged from the hollow collar 202, the upper end of the post 206 is brought into fluid communication with the reagent chamber—essentially converting the seal assembly to an unsealed configuration. In this unsealed configuration, the fluid vents 212 are unobstructed and act as channels for transporting the sample preservation solution from the reagent chamber to the sample collection vessel 201. The body of the post 206 forms a fluid tight seal with the inner sidewall of the hollow collar 202, forcing egress of sample preservation solution through the fluid vents/channels 212. Accordingly, there is no pooling of sample preservation reagent (from the reagent chamber) between the interior sidewall of the hollow collar 202 and the exterior sidewall of the post 206. Instead, the sample preservation reagent is directed from the reagent chamber, through the fluid vents 212 formed within the post 206, and into the sample collection vessel 201 where it mixes with and preserves the received biological sample. In this way, the seal assembly can move from a sealed configuration to an unsealed configuration when the sealing cap 210 is sealed onto the sample collection vessel 201.
In some embodiments, the seal assembly can be reversibly sealed and unsealed. That is, the plug 204 from the seal assembly can be serially added and removed from the opening of the hollow collar 202 to iterate from the sealed configuration to the unsealed configuration. For example, associating the sealing cap 210 with the sample collection vessel 201 can cause the plug 204 to disengage, thereby causing the seal assembly to transition from the sealed configuration to the unsealed configuration. In the unsealed configuration, the post 206 can be retracted and the plug 204 again placed within the hollow collar 202 to transition the seal assembly from the unsealed configuration to the sealed configuration.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present disclosure pertains.
It will also be appreciated that systems, devices, products, kits, methods, and/or processes, according to certain embodiments of the present disclosure may include, incorporate, or otherwise comprise properties, features (e.g., components, members, elements, parts, and/or portions) described in other embodiments disclosed and/or described herein. Accordingly, the various features of certain embodiments can be compatible with, combined with, included in, and/or incorporated into other embodiments of the present disclosure. Thus, disclosure of certain features relative to a specific embodiment of the present disclosure should not be construed as limiting application or inclusion of said features to the specific embodiment. Rather, it will be appreciated that other embodiments can also include said features, members, elements, parts, and/or portions without necessarily departing from the scope of the present disclosure.
Moreover, unless a feature is described as requiring another feature in combination therewith, any feature herein may be combined with any other feature of a same or different embodiment disclosed herein. Furthermore, various well-known aspects of illustrative systems, methods, apparatus, and the like are not described herein in particular detail in order to avoid obscuring aspects of the example embodiments. Such aspects are, however, also contemplated herein.
The present disclosure may be embodied in other specific forms without departing from its spirit or essential characteristics. The described embodiments are to be considered in all respects only as illustrative and not restrictive. The scope of the invention is, therefore, indicated by the appended claims rather than by the foregoing description. While certain embodiments and details have been included herein and in the attached disclosure for purposes of illustrating embodiments of the present disclosure, it will be apparent to those skilled in the art that various changes in the methods, products, devices, and apparatus disclosed herein may be made without departing from the scope of the disclosure or of the invention, which is defined in the appended claims. All changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
This application is a continuation of U.S. patent application Ser. No. 18/204,120, filed May 31, 2023, which is a continuation of U.S. patent application Ser. No. 16/906,830, filed Jun. 19, 2020, which claims the benefit of U.S. Provisional Application No. 62/864,500, filed Jun. 20, 2019, which are incorporated by reference in their entirety.
| Number | Name | Date | Kind |
|---|---|---|---|
| 2275567 | Smith | Mar 1942 | A |
| 2631521 | Atkins, Jr. | Mar 1953 | A |
| 2653611 | Smith | Sep 1953 | A |
| 2764983 | Pius et al. | Oct 1956 | A |
| 2773591 | Jensen | Dec 1956 | A |
| 3321097 | Solowey | May 1967 | A |
| 3340873 | Solowey | Sep 1967 | A |
| 3347410 | Schwartzman | Oct 1967 | A |
| 3441179 | Ragan | Apr 1969 | A |
| 3464414 | Sponnoble | Sep 1969 | A |
| 3518164 | Andelin et al. | Jun 1970 | A |
| 3536191 | Williams | Oct 1970 | A |
| 3537606 | Solowey | Nov 1970 | A |
| 3603484 | Ogle | Sep 1971 | A |
| 3651990 | Cernei | Mar 1972 | A |
| 3670914 | Poulsen, Jr. | Jun 1972 | A |
| 3674028 | Ogle | Jul 1972 | A |
| 3684455 | Vacirca et al. | Aug 1972 | A |
| 3731853 | Beham et al. | May 1973 | A |
| 3792699 | Tobin et al. | Feb 1974 | A |
| 3846077 | Ohringer | Nov 1974 | A |
| 3878571 | Seeley | Apr 1975 | A |
| 3924741 | Kachur et al. | Dec 1975 | A |
| 3968872 | Cavazza | Jul 1976 | A |
| 4102451 | Clarke et al. | Jul 1978 | A |
| 4150950 | Takeguchi et al. | Apr 1979 | A |
| 4195730 | Hunt | Apr 1980 | A |
| 4221291 | Hunt | Sep 1980 | A |
| 4311792 | Avery | Jan 1982 | A |
| 4324859 | Saxholm | Apr 1982 | A |
| 4418702 | Brown et al. | Dec 1983 | A |
| 4465183 | Saito et al. | Aug 1984 | A |
| 4473530 | Villa-Real | Sep 1984 | A |
| 4589548 | Fay | May 1986 | A |
| 4591050 | Finke et al. | May 1986 | A |
| 4615437 | Finke et al. | Oct 1986 | A |
| 4634003 | Ueda et al. | Jan 1987 | A |
| 4727985 | McNeirney et al. | Mar 1988 | A |
| 4741346 | Wong et al. | May 1988 | A |
| 4761379 | Williams et al. | Aug 1988 | A |
| 4920975 | Fay | May 1990 | A |
| 4932081 | Burns | Jun 1990 | A |
| 4982875 | Pozzi et al. | Jan 1991 | A |
| 5029718 | Rizzardi | Jul 1991 | A |
| 5119830 | Davis | Jun 1992 | A |
| 5128104 | Murphy et al. | Jul 1992 | A |
| 5152965 | Fisk et al. | Oct 1992 | A |
| 5266266 | Nason | Nov 1993 | A |
| 5268148 | Seymour | Dec 1993 | A |
| 5291991 | Meyer | Mar 1994 | A |
| 5330048 | Haber et al. | Jul 1994 | A |
| 5335673 | Goldstein et al. | Aug 1994 | A |
| 5422241 | Goldrick et al. | Jun 1995 | A |
| 5425921 | Coakley et al. | Jun 1995 | A |
| 5445965 | Stone | Aug 1995 | A |
| 5478722 | Caldwell | Dec 1995 | A |
| 5490971 | Gifford et al. | Feb 1996 | A |
| 5494646 | Seymour | Feb 1996 | A |
| 5643767 | Fischetti et al. | Jul 1997 | A |
| 5658531 | Cope et al. | Aug 1997 | A |
| 5714380 | Neri et al. | Feb 1998 | A |
| 5786228 | Charlton | Jul 1998 | A |
| 5827675 | Skiffington et al. | Oct 1998 | A |
| 5869328 | Antoci et al. | Feb 1999 | A |
| 5921396 | Brown, Jr. | Jul 1999 | A |
| 5927549 | Wood | Jul 1999 | A |
| 5935864 | Schramm et al. | Aug 1999 | A |
| 5941380 | Rothman | Aug 1999 | A |
| 5950819 | Sellars | Sep 1999 | A |
| 5967309 | Robles-Gonzalez et al. | Oct 1999 | A |
| 5968746 | Schneider | Oct 1999 | A |
| 5973137 | Heath | Oct 1999 | A |
| 5976829 | Birnboim | Nov 1999 | A |
| 5984141 | Gibler | Nov 1999 | A |
| 6003728 | Elliott | Dec 1999 | A |
| 6113257 | Sharon et al. | Sep 2000 | A |
| 6121055 | Hargreaves | Sep 2000 | A |
| 6138821 | Hsu | Oct 2000 | A |
| 6148996 | Morini | Nov 2000 | A |
| 6149866 | Luotola et al. | Nov 2000 | A |
| 6204375 | Lader | Mar 2001 | B1 |
| 6224922 | Fonte | May 2001 | B1 |
| 6228323 | Asgharian et al. | May 2001 | B1 |
| 6277646 | Guirguis et al. | Aug 2001 | B1 |
| 6309827 | Goldstein et al. | Oct 2001 | B1 |
| 6503716 | Lai et al. | Jan 2003 | B1 |
| 6524530 | Igarashi et al. | Feb 2003 | B1 |
| 6527110 | Moscovitz | Mar 2003 | B2 |
| 6528641 | Lader | Mar 2003 | B2 |
| 6533113 | Moscovitz | Mar 2003 | B2 |
| 6617170 | Augello et al. | Sep 2003 | B2 |
| 6776959 | Helftenbein | Aug 2004 | B1 |
| 7282371 | Helftenbein | Oct 2007 | B2 |
| 7464811 | Patterson et al. | Dec 2008 | B2 |
| 7482116 | Birnboim | Jan 2009 | B2 |
| 7748550 | Cho | Jul 2010 | B2 |
| 8084443 | Fischer et al. | Dec 2011 | B2 |
| 8137958 | Grimes et al. | Mar 2012 | B2 |
| 8293467 | Fischer et al. | Oct 2012 | B2 |
| 8415330 | Fischer et al. | Apr 2013 | B2 |
| 8418865 | Cho | Apr 2013 | B2 |
| 8669240 | Fischer et al. | Mar 2014 | B2 |
| 8728414 | Beach et al. | May 2014 | B2 |
| 9079181 | Curry et al. | Jul 2015 | B2 |
| 9138747 | Williams et al. | Sep 2015 | B2 |
| 9212399 | Fischer et al. | Dec 2015 | B2 |
| 9370775 | Harvey et al. | Jun 2016 | B2 |
| 9442046 | Biadillah et al. | Sep 2016 | B2 |
| 9523115 | Birnboim | Dec 2016 | B2 |
| 9683256 | Fischer et al. | Jun 2017 | B2 |
| 9732376 | Oyler et al. | Aug 2017 | B2 |
| 10000795 | Birnboim et al. | Jun 2018 | B2 |
| 10174362 | Gaeta | Jan 2019 | B2 |
| 10189020 | Williams et al. | Jan 2019 | B2 |
| 10525473 | Williams | Jan 2020 | B2 |
| 10576468 | Biadillah et al. | Mar 2020 | B2 |
| 10619187 | Birnboim | Apr 2020 | B2 |
| 10767215 | Birnboim et al. | Sep 2020 | B2 |
| 10774368 | Gaeta | Sep 2020 | B2 |
| 11002646 | Biadillah et al. | May 2021 | B2 |
| 20010023072 | Crawford et al. | Sep 2001 | A1 |
| 20010031473 | Dattagupta et al. | Oct 2001 | A1 |
| 20020110810 | Shuber | Aug 2002 | A1 |
| 20020197631 | Lawrence et al. | Dec 2002 | A1 |
| 20030086830 | Haywood et al. | May 2003 | A1 |
| 20030114430 | MacLeod et al. | Jun 2003 | A1 |
| 20030132244 | Birkmayer et al. | Jul 2003 | A1 |
| 20030143752 | Feldsine et al. | Jul 2003 | A1 |
| 20040014237 | Sugiyama et al. | Jan 2004 | A1 |
| 20040038269 | Birnboim | Feb 2004 | A1 |
| 20040038424 | Maples | Feb 2004 | A1 |
| 20040101859 | Moon et al. | May 2004 | A1 |
| 20040161788 | Chen et al. | Aug 2004 | A1 |
| 20040200740 | Cho | Oct 2004 | A1 |
| 20040200741 | Cho | Oct 2004 | A1 |
| 20040237674 | Wu et al. | Dec 2004 | A1 |
| 20050079484 | Heineman et al. | Apr 2005 | A1 |
| 20050101920 | Keane et al. | May 2005 | A1 |
| 20050112024 | Guo et al. | May 2005 | A1 |
| 20050123928 | Das et al. | Jun 2005 | A1 |
| 20060216196 | Satoh et al. | Sep 2006 | A1 |
| 20060245977 | Bodner | Nov 2006 | A1 |
| 20060260959 | Patterson et al. | Nov 2006 | A1 |
| 20070072229 | Bialozynski et al. | Mar 2007 | A1 |
| 20070134134 | Watts et al. | Jun 2007 | A1 |
| 20070140915 | Sakal et al. | Jun 2007 | A1 |
| 20070202511 | Chen et al. | Aug 2007 | A1 |
| 20070280042 | Yamanaka | Dec 2007 | A1 |
| 20070287149 | Shomi et al. | Dec 2007 | A1 |
| 20080003574 | Michalik et al. | Jan 2008 | A1 |
| 20080067084 | Patterson et al. | Mar 2008 | A1 |
| 20080156674 | Correale et al. | Jul 2008 | A1 |
| 20080187924 | Korfhage et al. | Aug 2008 | A1 |
| 20080194986 | Conway et al. | Aug 2008 | A1 |
| 20080226506 | Ohashi | Sep 2008 | A1 |
| 20080260581 | Rosman et al. | Oct 2008 | A1 |
| 20080293156 | Smith | Nov 2008 | A1 |
| 20090022631 | Ohashi et al. | Jan 2009 | A1 |
| 20090023219 | Perez | Jan 2009 | A1 |
| 20090133366 | Cronin et al. | May 2009 | A1 |
| 20090216213 | Muir et al. | Aug 2009 | A1 |
| 20090312285 | Fischer et al. | Dec 2009 | A1 |
| 20110068102 | Porter | Mar 2011 | A1 |
| 20110212002 | Curry et al. | Sep 2011 | A1 |
| 20120046574 | Skakoon | Feb 2012 | A1 |
| 20120220043 | Sangha | Aug 2012 | A1 |
| 20120308448 | Wong | Dec 2012 | A1 |
| 20120325721 | Plante et al. | Dec 2012 | A1 |
| 20130011311 | Kim | Jan 2013 | A1 |
| 20130026691 | Cahill et al. | Jan 2013 | A1 |
| 20130209993 | Aronowitz | Aug 2013 | A1 |
| 20130248045 | Williams et al. | Sep 2013 | A1 |
| 20140051178 | Niggel et al. | Feb 2014 | A1 |
| 20140120531 | Biadillah et al. | May 2014 | A1 |
| 20140242685 | Knoppke et al. | Aug 2014 | A1 |
| 20150056716 | Oyler et al. | Feb 2015 | A1 |
| 20150140681 | Meng et al. | May 2015 | A1 |
| 20150190122 | Butlin et al. | Jul 2015 | A1 |
| 20150203258 | Staton | Jul 2015 | A1 |
| 20150289856 | Saqi et al. | Oct 2015 | A1 |
| 20150343438 | Williams et al. | Dec 2015 | A1 |
| 20160023210 | Birkner et al. | Jan 2016 | A1 |
| 20160045187 | Terbrueggen et al. | Feb 2016 | A1 |
| 20160296936 | Trump et al. | Oct 2016 | A1 |
| 20170001191 | Biadillah et al. | Jan 2017 | A1 |
| 20170350797 | Estep et al. | Dec 2017 | A1 |
| 20180344568 | Phillips et al. | Dec 2018 | A1 |
| 20190151842 | Williams et al. | May 2019 | A1 |
| 20190200966 | Zhan et al. | Jul 2019 | A1 |
| 20200156056 | Williams et al. | May 2020 | A1 |
| 20200254460 | Blair et al. | Aug 2020 | A1 |
| 20200269232 | Williams et al. | Aug 2020 | A1 |
| 20200284704 | Biadillah et al. | Sep 2020 | A1 |
| 20200398267 | Biadillah et al. | Dec 2020 | A1 |
| Number | Date | Country |
|---|---|---|
| 2013206564 | Jul 2013 | AU |
| 2072331 | Dec 1992 | CA |
| 2236240 | Oct 1999 | CA |
| 2348152 | Feb 2000 | CA |
| 2488769 | Dec 2003 | CA |
| 101321586 | Dec 2008 | CN |
| 103890163 | Jun 2014 | CN |
| 106132456 | Nov 2016 | CN |
| 106879252 | Jun 2017 | CN |
| 10219117 | Oct 2003 | DE |
| 0215533 | Mar 1987 | EP |
| 0215735 | Mar 1987 | EP |
| 0586024 | Mar 1994 | EP |
| 0734684 | Oct 1996 | EP |
| 1513952 | Dec 2010 | EP |
| 1403274 | Aug 1975 | GB |
| 05-187976 | Jul 1993 | JP |
| 06-046856 | Feb 1994 | JP |
| 09-509495 | Sep 1997 | JP |
| 10-273161 | Oct 1998 | JP |
| 2000-346838 | Dec 2000 | JP |
| 2009-031300 | Feb 2009 | JP |
| 2009-519439 | May 2009 | JP |
| 2010-213660 | Sep 2010 | JP |
| 2014-527615 | Oct 2014 | JP |
| 2017-522550 | Aug 2017 | JP |
| 2018-021916 | Feb 2018 | JP |
| 10-2019-0019491 | Feb 2019 | KR |
| 8906704 | Jul 1989 | WO |
| 9102740 | Mar 1991 | WO |
| 9705248 | Feb 1997 | WO |
| 9748492 | Dec 1997 | WO |
| 9803265 | Jan 1998 | WO |
| 9804899 | Feb 1998 | WO |
| 9838917 | Sep 1998 | WO |
| 9844158 | Oct 1998 | WO |
| 9929904 | Jun 1999 | WO |
| 0006780 | Feb 2000 | WO |
| 0010884 | Mar 2000 | WO |
| 0077235 | Dec 2000 | WO |
| 0134844 | May 2001 | WO |
| 0288296 | Nov 2002 | WO |
| 2003104251 | Dec 2003 | WO |
| 2004017895 | Mar 2004 | WO |
| 2004094635 | Nov 2004 | WO |
| 2004104181 | Dec 2004 | WO |
| 2005051775 | Jun 2005 | WO |
| 2005111210 | Nov 2005 | WO |
| 2005120977 | Dec 2005 | WO |
| 2006096973 | Sep 2006 | WO |
| 2012177656 | Dec 2012 | WO |
| 2015112496 | Jul 2015 | WO |
| 2019104215 | May 2019 | WO |
| Entry |
|---|
| 463a. Edta-Medium, 2010 DSMZ Gmbh. |
| Ausubel et al. , “Analysis of Protein Interactions”, Current Protocols in Molecular Biology, Dec. 4, 2003. |
| Ausubel et al.,“Preparation and Analysis of RNA” Current Protocols in Molecular Biology, Dec. 4, 2003. |
| Boom et al., “Rapid and Simple Method for Purification of Nucleic Acids”, Journal of Clinical Microbiology, Apr. 1990. |
| Brady, Chapter 16 Acid-Base Equilibria in Aqueous Solutions, “General Chemistry Principles and Structure Buffers: the control of pH” 1990. |
| Breslow et al., “On the mechanism of action of ribonuclease A: Relevance of enzymatic studies with a p-nitrophenylphosphate ester and a thiophosphate ester” Proc. Natl. Acad. Sci. USA., vol. 93, pp. 10018-10021, Sep. 1996. |
| Chirgwin et al.“Isolation of Biologically Active Ribonucleic Acid from Sources Enriched in Ribonuclease”, Biochemistry vol. 18, No. 24, 1979. |
| Cox et al., “The Use of Guanidinium Chloride in the Isolation of Nucleic Acids” Methods in Enzymology, vol. XII, Nucleic Acids, Part B, 1968. |
| Cunningham et al., “Colorectal Cancer Methods and Protocols” Methods in Molecular Medicine, vol. 50; 2001. |
| Doosti et al., “Study of the frequency of Clostridium difficile tcdA, tcdB, cdtA and cdtB genes in feces of Calves in south west of Iran” Ann Clin Microbial Antimicrob. Jun. 5, 2014. |
| European Search Report received for EP Patent Application No. 19887385.3, mailed on Aug. 8, 2022, 10 pages. |
| European Search Report received for EP Patent Application No. 20826985.2, mailed on Aug. 30, 2023, 13 pages. |
| European Search Report received for EP Patent Application No. 20826985.2, mailed on May 30, 2023, 14 pages. |
| Excerpts from The American Heritage Dictionary, 2000. |
| Farrell, “RNA Methodologies a Laboratory Guide for Solation and Aracterization Chapters 4 and 5” Copyright Elsevier 2021. |
| Feramisco et al., “Co-existence of Vinculin and a Vinculin-like Protein of Higher Molecular Weight in Smooth Muscle” The Journal of Biological Chemistry, vol. 257, No. 18, Issue of Sep. 25, pp. 11024-11031, 1982. |
| Fisher Catalog 1998-1999. |
| Freeman et al., “DNA by Mail: An Inexpensive and Noninvasive Method for Collecting DNA Samples from Widely Dispersed Populations” Behavior Genetics, vol. 27, No. 3 1997. |
| Garcia-Closas et al., “Collection of Genomic DNA from Adults in Epidemiological Studies by Buccal Cytobrush and Mouthwash” Cancer Epidemiology, Biomarkers and Prevention, vol. 10, 687-696, Jun. 2001. |
| Goldenberger et al., “A Simple “Universal” DNA Extraction Procedure Using SOS and Proteinase K is Compatible with Direct PCR Amplification” PCR Methods and Applications, Received Dec. 12, 1997; accepted Mar. 31, 1995. |
| International Preliminary Report on Patentability received for PCT Patent Application No. PCT/US2019/062484, mailed on Jun. 3, 2021, 8 pages. |
| International Preliminary Report on Patentability received for PCT Patent Application No. PCT/US2020/038858, mailed on Dec. 30, 2021, 9 pages. |
| International Search Report and Written Opinion issued in PCT/US19/62484 dated Jan. 29, 2020. |
| International Search Report and Written Opinion received for PCT Patent Application No. PCT/US20/038858, mailed on Sep. 30, 2020, 11 pages. |
| International Search Report issued in PCT/US2018/030681 dated Jul. 12, 2018. |
| Jennings et. al., Petition for Inter Partes Review of U.S. Pat. No. 11,002,646, Jul. 29, 2022. |
| Johnson et al., “Effectiveness of alcohol-based hand rubs for removal of Clostridium difficile spores from hands”, Infect Control Hosp Epidemiol, Jun. 2010. |
| Kilpatrick et al, “Noncryogenic Preservation of Mammalian Tissues for DNA Extraction: An Assessment of Storage Methods” Biochemical Genetics, vol. 40, Nos. ½, Feb. 2002. |
| Loens et al., “Detection of Mycoplasma pneumoniae in Spiked Clinical Samples by Nucleic Acid Sequence-Based Amplification” Journal of Clinical Microbiology, Apr. 2002, p. 1339-1345. |
| Longmire et al., “Use of “Lysis Buffer” in DNA Isolation and its Implication for Museum Collections” Museum of Texas Tech University, No. 163, May 1, 1997. |
| Maniatis et al., “Isolation of MRNA From Mammalian Cells”, 1982. |
| Maniatis et al., “Molecular Cloning a Laboratory Manual” Cold Spring Harbor Laboratory; 1982. |
| Meulenbelt et al., “High-Yield Noninvasive Human Genomic DNA Isolation Method for Genetic Studies in Geographically Dispersed Families and Populations” 1995. |
| Monahan et al., “Extraction of RNA from Intracellular Mycobacterium tuberculosis” Methods in Molecular Medicine, vol. 54: Mycobacterium tuberculosis Protocols; 2001. |
| Noll et al., “The Use of Sodium and Lithium Dodecyl Sulfate in Nucleic Acid Isolation” Methods in Enzymology, vol. XII, Nucleic Acids, Part B, 1968. |
| Piotr Chomczynsk, et al., “Single-Step Method of RNA Isolation by Acid Guanidinium Thiocyanate-Phenol-Chloroform Extraction” Analytical Biochemistry 162, 156-159; 1987. |
| Promega 1993-1994 Catalog, Revolutions in Science. |
| Rutala et al., “Guideline for Disinfection and Sterilization in Healthcare Facilities, 2008”. |
| Rymaszewski et al., “Estimation of cellular DNA content in cell lysates suitable for RNA isolation” Analytical Biochemistry, vol. 188, Issue 1, Jul. 1990, pp. 91-96. |
| Sela et al., “The Correlation of Ribonuclease Activity with Specific Aspects of Tertiary Structure” Biochimica et Biophysica Acta, vol. 26, 1957. |
| Seutin et al., “Preservation of avian blood and tissue samples for DNA analyses” 1990. |
| Shahbazi et al., “Screening of SOS-degrading bacteria from car wash wastewater and study of the alkylsulfatase enzyme activity”, Iranian Journal of Microbiology, vol. 5 No. 2, Jun. 2013, pp. 153-158. |
| Spectrum Solutions, “FDA Emergency Use Authorization Granted Utilizing Saliva for COVID-19 Testing Exlcusively Using SDNA-1000Saliva Collection Device from Spectrum” Apr. 13, 2020. |
| Spectrum Solutions, “Technically Superior Whole Saliva Collection Devices, accessed on Nov. 20, 2020”. |
| Streckfus et al., “Saliva as a diagnostic fluid” 2002. |
| Tabak et al., “A Revolution in Biomedical Assessment: The Development of Salivary Diagnostics” Journal of Dental Education, Dec. 2001. |
| Thermo Fisher Scientific, “Top 10 Ways to Improve Your RNA Isolation”, Downloaded on or around Nov. 22, 2021. |
| Vintiloiu et al., “Effect of ethylenediaminetetraacetic acid (EDTA) on the bioavailability of trace elements during anaerobic digestion” Chemical Engineering Journal, vol. 223, May 1, 2013, pp. 436-441. |
| Woldringh et al., “Effects of Treatment with Sodium Dodecyl Sulfate on the Ultrastructure of Escherichia coli” Journal of Bacteriology, Sep. 1972. |
| Yuan et al., “Statistical Analysis of Real-Time PCR Data” BMC Bioinformatics, Feb. 22, 2006. |
| Zou, “A Practical Approach to Genetic Screening for Influenza Virus Variants”, Journal of Clinical Microbiology, vol. 25, No. 10, Oct. 1997, p. 2623-2627. |
| Lin, “Chemical plant sampling system design”, Shandong chemical industry, vol. 43, No. 8, Dec. 31, 2014, pp. 149-151. |
| Number | Date | Country | |
|---|---|---|---|
| 20230338013 A1 | Oct 2023 | US |
| Number | Date | Country | |
|---|---|---|---|
| 62864500 | Jun 2019 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 18204120 | May 2023 | US |
| Child | 18208980 | US | |
| Parent | 16906830 | Jun 2020 | US |
| Child | 18204120 | US |
