US3918435A - Transport swab tube - Google Patents

Transport swab tube Download PDF

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Publication number
US3918435A
US3918435A US436223A US43622374A US3918435A US 3918435 A US3918435 A US 3918435A US 436223 A US436223 A US 436223A US 43622374 A US43622374 A US 43622374A US 3918435 A US3918435 A US 3918435A
Authority
US
United States
Prior art keywords
swab
receptacle
opening
tubular
movable
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.)
Expired - Lifetime
Application number
US436223A
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English (en)
Inventor
Glenn Lee Beall
Fred K White
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.)
NUNC INCORPORATED A DE CORP
Original Assignee
Miles Laboratories Inc
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
Application filed by Miles Laboratories Inc filed Critical Miles Laboratories Inc
Priority to US436223A priority Critical patent/US3918435A/en
Priority to IT47607/75A priority patent/IT1026294B/it
Priority to JP50008398A priority patent/JPS50103891A/ja
Priority to SE7500737A priority patent/SE7500737L/xx
Application granted granted Critical
Publication of US3918435A publication Critical patent/US3918435A/en
Assigned to NUNC, INCORPORATED, A DE CORP. reassignment NUNC, INCORPORATED, A DE CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MILES LABORATORIES, INC., A DE CORP.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/02—Instruments for taking cell samples or for biopsy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/0096—Casings for storing test samples
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/38—Swabs having a stick-type handle, e.g. cotton tips
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M35/00—Devices for applying media, e.g. remedies, on the human body
    • A61M35/003—Portable hand-held applicators having means for dispensing or spreading integral media
    • A61M35/006—Portable hand-held applicators having means for dispensing or spreading integral media using sponges, foams, absorbent pads or swabs as spreading means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
    • B01L3/502—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures
    • B01L3/5029—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures using swabs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
    • B01L2200/14—Process control and prevention of errors
    • B01L2200/141—Preventing contamination, tampering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2300/00—Additional constructional details
    • B01L2300/04—Closures and closing means
    • B01L2300/046—Function or devices integrated in the closure
    • B01L2300/047—Additional chamber, reservoir
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2300/00—Additional constructional details
    • B01L2300/12—Specific details about materials
    • B01L2300/123—Flexible; Elastomeric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2400/00—Moving or stopping fluids
    • B01L2400/04—Moving fluids with specific forces or mechanical means
    • B01L2400/0475—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure
    • B01L2400/0478—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2400/00—Moving or stopping fluids
    • B01L2400/04—Moving fluids with specific forces or mechanical means
    • B01L2400/0475—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure
    • B01L2400/0481—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure squeezing of channels or chambers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N2001/028—Sampling from a surface, swabbing, vaporising

Definitions

  • ABSTRACT Transport swab tube apparatus capable of storing and transporting to a clinical laboratory a swab containing a microorganism sample and a suitable preservative medium.
  • the apparatus comprises in combination an outer tube container having a removable sealing cap, a hollow tubular swab member having a bibulous swab material at one end and a liquid storage receptacle at its other end, and wherein the liquid storage receptacle and the swab member are supported by the removable sealing cap.
  • the swab member When the cap is placed on and seals the tube container, the swab member is supported within the tube container so that the bibulous swab material does not touch the walls or end of the tube container.
  • the liquid in the liquid storage receptacle can flow through the hollow swab member and contact the swab material.
  • FIG. 1 A first figure.
  • TRANSPORT SWAB TUBE BACKGROUND AND PRIOR ART In the practice of medicine a physician frequently desires to obtain a sample of organisms which may be present in or on various parts of a human body. to accomplish this task, he takes a sterile swab from its supply container, contacts the desired sample area with the swab and then forwards the swab to a laboratory for culture analysis. This overall procedure has several requirements. First, the swab must be maintained in a sterile condition before it is used. Second, the swab must not become contaminated with organisms foreign to those present in the desired human body sample area prior to culture analysis.
  • test organisms in order that the test organisms can provide an accurate culture analysis, they must be maintained in a viable state between the time of sample collection on the swab and the time of culture analysis in the clinical laboratory. This is accomplished by liquid treatment of such swab with a preservative medium, generally by pouring liquid into a tube holding the swab. Such preservative liquid can undesirably wash off some of the organisms from the outer surface of the swab.
  • transport swab tube apparatus comprising in combination an elongated tube container having a closed end and an open end, a removable cap capable of sealing said open end of said tube'container, an elongated hollow tubular swab member having a length less than that of said tube container and having an opening at each end thereof, bibulous swab material located at one end of said swab member and covering the opening at that end of said swab member, a liquid storage receptacle located near the other end of said swab member and capable of being placed in liquid-flow communication with the opening at said end of said swab member so that liquid can flow from said receptacle through the tubular swab member and become absorbed by said bibulous swab material, said tubular swab member and said liquid storage receptacle being supported by said removable cap, said bibulous swab
  • FIG. 1 is an axial cross-sectional view of one embodiment of the present invention
  • FIG. 2 is a similar view of such embodiment during one aspect of the use of such apparatus
  • FIG. 3 is an axial cross-sectional view of another embodiment of the present invention in ;a first operational position;
  • FIG. 4 is a similar view of the embodiment of FIG. 3 in a second operational position
  • FIG. 5 is a similar view of the embodiment of FIG. 3 in a third operational position.
  • the apparatus 10 of the present invention comprises an elongated tube container 12, a removable cap 18, a swab member 20 and a liquid storage receptacle 22.
  • the tube container 12 has a closed end 14 and an open end 16 provided with external threads 24.
  • Removable cap 18 has a top portion 26 and a depending tubular side portion 28 provided with internal threads 30 capable of threaded relation with threads 24 of tube container 12.
  • An extension 32 depends axially from top portion 26 of cap 18.
  • a chamber 34 is formed by a tubualr member 36 having at its upper end an annular radially outwardly projecting lip 38.
  • Member 36 is coaxially supported by cap 18 through tight-fitting or adhesive contact between lip 38 and the sidewall portion 28 of cap 18 above the location of threads 30.
  • the tubular member 36 terminates at its lower end in bottom wall 40 which is formed with an axial opening 42 therein.
  • Member 36 is formed of a flexible material, such as thin flexible organoplastic.
  • a sealed liquid storage receptacle or capsule 22 filled with liquid 23 is located inside chamber 34 and is held in position by extension 32.
  • Receptacle 22 is formed from frangible material, such as glass or brittle organoplactics.
  • the hollow tubular swab member 20 has an open upper end 44 fitted into opening 42 of chamber 34 and is supported thereby.
  • the joint between swab member 20 and bottom wall 40 can be a press-fit or adhesives may be employed if desired.
  • Chamber 34 is thus in communication with the upper end opening 44 of swab member 20.
  • the open lower end 46 of swab member 20 is covered by bibulous swab material 48. This swab material is preferably cotton, but other absorbent material can also be used.
  • the members 36 and 20 together have an overall length less than that of container 12. As shown in FIG.
  • the bibulous swab material 48 is positioned within container 12 near the closed end 14 but not in contact with the container. In this relationship the apparatus can be sterilized so that the sterile swab material 48 can be stored in a sterile condition until needed.
  • cap 18 is loosened and, together with the swab member 20, is removed from tube container 12.
  • the swab material 48 is placed in contact with the sample area, whereby microorganisms are transferred to the swab material.
  • swab member 20 with material 48 is replaced into container 12.
  • the member 36 is squeezed so as to break the frangible receptacle 22. The liquid 23 can then flow from such receptacle through tubular swab member 20 and become absorbed by swab material 48.
  • Receptacle can be conveniently broken by digital squeezing pressure on member 36.
  • An alternative technique is shown in FIG. 2 wherein the member 36 is bent over the edge of end opening 16 of tube 12 causing fracture of receptable 22.
  • the portion of chamber 34 opposite from that in contact with tube 12 is digitally held so as to prevent swab material 48 from coming into contact with the walls of tube 12.
  • cap 18 is placed onto seals container 12 so that the overall configuration is as shown in FIG. 1, except that receptacle 22 no longer holds liquid 23.
  • Liquid 23 can be any culture-sustaining liquid.
  • the composition of this liquid will be governed by the type of microorganism collected on the swab material.
  • Illustrative useful liquids are distilled water, saline solution, and various culture nutrient media. The particular composition of the liquid does not form a part of the invention described and claimed herein.
  • The-apparatus of FIG. 1 can be transported to a clinical laboratory for subsequent culture analysis. During this transport and storage, the microorganism sample on swab material 48 does not lose its vitality and it is not contaminated by other organisms. Since the culture-sustaining liquid does not wash against the outer surface of swab material 48, as is the usual fashion in prior art apparatus, there is no dilution of the sample and no washing loss of the sample. the liquid 23 merely moistens the swab material 48 and enables the culture vitality to be maintained.
  • FIGS. 3, 4 and 5 A preferred embodiment of the invention is shown in FIGS. 3, 4 and 5. Apparatus elements similar to those of FIGS. 1 and 2 have the same number with a suffix a.
  • an elongated tube container 12with a closed end 14a and an open end 16a has a removable cap 18a capable of mating in sealing relation thereto.
  • Cap 18a has a top 50 and a tubular depending sidewall 52 which can have a threadable attachment to .container 120.
  • Top 50 has an axial opening 54 therein,
  • a hollow tubular swab member 20a is telescopically fitted into the reduced diameter portion 60 of extension 56 and is supported thereby.
  • the joint between swab member 20a and passage opening 420 can be a press-fit or adhesives may be employed if desired.
  • the open lower end 46a of swab member 20a is covered by swab material 48a.
  • Swab member 20a is formed with at least one opening 72 which provides communication between the interior thereof and the interior of the extension 56.
  • the upper end of swab member 20a terminates in a coaxial extension member 62 which may be solid and which extends coaxially through opening 54 in cap 18a.
  • This extension member 62 has a portion 64 of smaller diameter than the external diameter of tubular swab member 20a, thereby forming an annular shoulder 68. Extension member 62 can be attached directly to swab member 20a by adhesives or can be formed integral therewith. Cap 18a, extension 56, swab member 20a and extension member 62 thus form a unitary member with no relative motion between connecting parts of such unitary member.
  • a movable tubular member 74 is telescopically posi- 'tioned within extension 56 and surrounds swab member 20a and its extension 62.
  • Member 74 is formed at seal with the upper end portion 66 of extension 62.
  • At its lower end member 74 is formed with sealing means in the form of a plurality of longitudinally-spaced, transversely inwardly and outwardlyextending annular bead or flange portions 82 and 84 which extend between and are in liquid-impermeable sliding contact with extension 56 and the tubular portion of swab member 20a. These flange portions 82 and 84 thus form a sealing ring configuration.
  • Member 74 is capable of axial movement in both directions between its lower most position shown in FIG.
  • the spacer means on knob 76 has a predetermined length so as to define the lowermost position of member 74 and to also position opening 78 in a sealing relationship with end portion 66 of swab member 200 when spacer 80 contacts cap 18a.
  • the abutment means 58 limits upward movement of flange portions 82 and 84 and thereby prevents member 74 from being undesirably removed completely from member 56.
  • This preferred apparatus is employed in the following manner.
  • the apparatus is initially fabricated in the first operational position as shown in FIG. 3 and is then sterilized.
  • Member 74 is then moved upward to the second operational position shown in FIG. 4 wherein the end opening 78 is no longer sealed by end portion 66 and the sealing ring configuration provided by flange portions 82, 84 still maintains the liquid-impermeable seal between the extension member 56 and the tubular portion of swab member 20a.
  • a filling tube 86 can be inserted through opening 78 and liquid 23a introduced into the liquid storage receptacle formed by tubular member 74.
  • member 74 is lowered until spacer means 80 contacts the cap 18a as shown in FIG, 3.
  • the liquid 23a (not shown in FIG. 3) is not sealed and stored in the member 74. This filling operation can be conducted under sterile conditions. The apparatus can then be stored until needed to collect a microorganism sample. Liquid 23a cannot leak from its receptacle in member 74 no matter in what position the apparatus is stored.
  • cap 18a is loosened and, together with the swab member 20a, extension 56 and member 74, is removed as a unit from container 12a.
  • cap 18a as a handle, swab member 20a is manipulated so as to place the swab material 48a in contact with the sample area, whereby microorganisms are transferred to the swab material.
  • cap as a handle, the unitary assemblage is returned to its position shown in FIG. 3 wherein the swab member 20a is in container 12a and cap 18a tightened to seal swab material 48a inside container 12a.
  • the member 74 is then lowered to the first operational position shown in FIG. 3 wherein the swab member a is sealed from communication with the surrounding atmosphere. This lowering action of member 74 also acts as a piston to force liquid 23a out of chamber 34a and into hollow swab member 20a.
  • tube container 12 or 12a be transparent so that the swab material 48 or 48a can be observed prior to and after collection of the sample.
  • the apparatus of the present invention has the technical and commercial advantages of convenience, simplicity of operation, controlled sterility prior to use and minimal contamination after collection of sample. It also prevents the microorganisms from being washed off the swab by external liquid application. It is an advance in the art of transport swab tubes.
  • a transport swab tube apparatus comprising in combination a tube container having a closed end and an open end, a cap removably attached in sealing relationship to said open end of said tube container, a tubular swab member supported by said cap having a length less than that of said tube container and having an opening at each end thereof, bibulous swab material carried by and covering the opening at one end of said swab member, a liquid storage receptacle supported by said cap, a passage communicating between said liquid storage receptacle and the other end of said swab memher, and a relatively movable sealing means associated with said receptacle and said swab member, said sealing means when in a'first position sealing the interior of said receptacle from said passage and when in a second position affording communication between the interior of said receptacle and said passage so that liquid can flow from said receptacle through the tubular swab member and become absorbed by said bibulous
  • Apparatus according to claim 1 wherein there is means defining a chamber in communication with the opening at said other end of said tubular swab member, said means being supported by said removable cap and supporting said tubular swab member, said receptacle being movable to first and second positions relative to said swab member, and cooperable sealing means on said receptacle and swab member, said sealing means sealing the interior of said receptacle from said chamber when said receptacle is in its first position and affording communication between the interior of said receptacle and said chamber when said receptacle is in its said second position. 5 4.
  • Apparatus according to claim 3 wherein said receptacle is provided with a vent opening and there is cooperable second sealing means on said receptacle and swab member sealing said vent opening when said receptacle is in its first position and permitting venting of said receptacle to the atmosphere when said receptacle is in its said second position.
  • said removable cap has a top with a skirt depending therefrom capable of mating in sealing relation with said tube container, said removable cap also having an opening in said top and a tubular extension surrounding said opening and coaxially depending from said top, said extension having a reduced diameter lower end portion telescopically supporting one end of said tubular swab member, said extension forming a chamber communicating with the opening in said end of said swab member, a closed ended extension member extending coaxially from the swab member through said chamber and out through said opening in said top of said removable cap, said swab member having a portion of reduced diameter forming an annular external shoulder, a movable tubular member coaxially positioned between said tubular extension of said removable top and said swab member and its extension member, said movable tubular member having an axial opening near one end thereof and having sealing means cooperable with said swab member near the opposite end thereof, said movable member being capable of axial

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Medical Informatics (AREA)
  • Chemical & Material Sciences (AREA)
  • Pathology (AREA)
  • Hematology (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Clinical Laboratory Science (AREA)
  • Analytical Chemistry (AREA)
  • Epidemiology (AREA)
  • Vascular Medicine (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Anesthesiology (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
US436223A 1974-01-24 1974-01-24 Transport swab tube Expired - Lifetime US3918435A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US436223A US3918435A (en) 1974-01-24 1974-01-24 Transport swab tube
IT47607/75A IT1026294B (it) 1974-01-24 1975-01-09 Strumento tubolare di trasporto di tamponi per impiego clinico
JP50008398A JPS50103891A (ja) 1974-01-24 1975-01-21
SE7500737A SE7500737L (ja) 1974-01-24 1975-01-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US436223A US3918435A (en) 1974-01-24 1974-01-24 Transport swab tube

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US3918435A true US3918435A (en) 1975-11-11

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Application Number Title Priority Date Filing Date
US436223A Expired - Lifetime US3918435A (en) 1974-01-24 1974-01-24 Transport swab tube

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US (1) US3918435A (ja)
JP (1) JPS50103891A (ja)
IT (1) IT1026294B (ja)
SE (1) SE7500737L (ja)

Cited By (71)

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FR2422564A1 (fr) * 1978-04-10 1979-11-09 Mrejen Didier Dispositif comprenant un reservoir de fluide et un tampon impregnable par ce fluide, notamment pour l'application d'un liquide antiseptique sur la peau ou les muqueuses
US4409988A (en) * 1973-05-08 1983-10-18 Donald J. Greenspan Apparatus for collecting cultures
US4465078A (en) * 1982-09-30 1984-08-14 Medtest Corporation Method for cell sampling in a body cavity
US4578055A (en) * 1979-07-25 1986-03-25 Fischer Dan E Controlled diffusion medicament applicator
US4657869A (en) * 1984-05-18 1987-04-14 E. I. Du Pont De Nemours And Company Self-contained device for carrying out specific binding assays
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US4781484A (en) * 1986-02-17 1988-11-01 L'oreal Application unit requiring automatic addition of at least one additive upon first use
US4788985A (en) * 1982-09-30 1988-12-06 Medtest Corporation Device for cell sampling in a body cavity
US4813432A (en) * 1987-10-13 1989-03-21 Saint-Amand Manufacturing, Inc. Swab transport system
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US5078968A (en) * 1988-02-09 1992-01-07 Nason Frederic L Specimen test unit
US5238649A (en) * 1988-02-09 1993-08-24 Nason Frederic L Specimen test unit
US5246371A (en) * 1992-08-31 1993-09-21 Ultradent Products, Inc. Method and apparatus for delivery of highly filled, thixotropic sealant to teeth
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USD388519S (en) * 1996-04-02 1997-12-30 Charm Sciences, Inc. Pocket-size sanitation test kit
US5869003A (en) * 1998-04-15 1999-02-09 Nason; Frederic L. Self contained diagnostic test unit
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WO2003037422A1 (fr) * 2001-11-02 2003-05-08 Nicolas Trevillot Batonnet renfermant un produit que l'utilisateur peut amener au contact d'un materiau absorbant
US6598474B2 (en) * 2001-03-02 2003-07-29 Bayer Corporation Adapter for holding a sample container to facilitate sensing of liquid level in the sample container
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US20040018634A1 (en) * 2002-07-29 2004-01-29 Kiamars Hajizadeh Sample-collection and preparation device and method
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JPS50103891A (ja) 1975-08-16
IT1026294B (it) 1978-09-20
SE7500737L (ja) 1975-07-25

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