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A Method of Extracting A Sample from A Surface
| Content Provider | The Lens |
|---|---|
| Related Links | https://www.lens.org/lens/patent/009-577-692-537-857/frontpage |
| Language | English |
| Publisher Date | 2019-02-27 |
| Access Restriction | Open |
| Alternative Title | Methode Zur Extraktion Einer Probe Von Einer Oberfläche Procédé D'extraction D'un Échantillon D'une Surface |
| Content Type | Text |
| Resource Type | Patent |
| Date Applied | 2006-05-15 |
| Agent | J A Kemp |
| Applicant | Orion Diagnostica Oy |
| Application No. | 06753607 |
| Claim | A method of extracting a sample from a surface comprising: providing a test device (60) for wiping over a surface to extract a sample, the test device comprising: two impermeable layers (62, 63); a layer of absorbent matrix material (1) arranged between the impermeable layers, the matrix material having a reagent applied thereto, one of the impermeable layers having at least one opening (65, 71) aligned with the matrix material; and a semi-permeable layer (61) extending across the at least one opening, the semi-permeable layer being made of a hydrophobic semi-permeable material which allows a sample to pass therethrough; wiping the surface with test device to absorb a sample into the matrix material from the surface through the at least one opening; and the semi-permeable layer limiting backflow of the reagent by leaching from the matrix materia A method according to claim 1, wherein the semi-permeable material is non-woven polypropylene. A method according to claim 1, wherein the one-way flow semi-permeable layer is arranged between the layer of matrix material and the one of the impermeable layers having the at least one opening. A method according to any one of claims 1 or 2, wherein said at least one opening comprises a plurality of openings. A method according to any one of claims 1 to 3, further comprising adding a moistening agent to the surface or to the test device before said wiping. |
| CPC Classification | Chemical Or Physical Laboratory Apparatus For General Use TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION |
| Extended Family | 040-131-160-310-093 037-015-549-892-072 177-469-270-245-954 185-531-421-767-253 093-149-730-865-09X 057-064-032-820-400 005-657-557-410-17X 105-084-960-091-420 109-362-232-585-169 000-877-079-272-27X 188-471-563-152-34X 085-636-849-687-313 037-645-643-943-549 144-629-478-500-70X 009-577-692-537-857 043-914-652-679-276 047-629-653-189-220 090-699-001-918-224 016-680-072-269-707 184-010-558-681-100 194-608-529-494-532 |
| Patent ID | 1882185 |
| Inventor/Author | Häivä Veli-mies Kylmä Anna Kaisa Luotola Juhani |
| IPC | B01L3/00 |
| Status | Active |
| Simple Family | 040-131-160-310-093 037-015-549-892-072 177-469-270-245-954 185-531-421-767-253 093-149-730-865-09X 057-064-032-820-400 005-657-557-410-17X 105-084-960-091-420 109-362-232-585-169 000-877-079-272-27X 188-471-563-152-34X 085-636-849-687-313 037-645-643-943-549 144-629-478-500-70X 009-577-692-537-857 043-914-652-679-276 047-629-653-189-220 090-699-001-918-224 016-680-072-269-707 184-010-558-681-100 194-608-529-494-532 |
| CPC (with Group) | B01L3/5023 B01L2200/027 B01L2200/12 B01L2200/16 B01L2300/0825 B01L2400/0688 Y10T436/25 |
| Issuing Authority | United States Patent and Trademark Office (USPTO) |
| Kind | Patent/Patent 1st level of publication/Inventor's certificate |
