US 12,226,337 B2
Body fluid collection device
Kuohuang Yang, Taipei (TW)
Appl. No. 17/255,706
Filed by Kuohuang Yang, Taipei (TW)
PCT Filed Jun. 20, 2019, PCT No. PCT/CN2019/000129
§ 371(c)(1), (2) Date Dec. 23, 2020,
PCT Pub. No. WO2020/000994, PCT Pub. Date Jan. 2, 2020.
Claims priority of application No. 201820986228.6 (CN), filed on Jun. 26, 2018.
Prior Publication US 2021/0282960 A1, Sep. 16, 2021
Int. Cl. A61F 5/44 (2006.01); A61F 5/443 (2006.01); A61F 5/453 (2006.01)
CPC A61F 5/4404 (2013.01) [A61F 5/443 (2013.01); A61F 5/453 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A body fluid collection device, comprising:
a first sheet, provided with a first opening and comprising a first surface and a second surface;
an adhesive layer, disposed on the first surface of the first sheet;
a second sheet, provided with a second opening and comprising a third surface and a fourth surface, the third surface being connected to the second surface of the first sheet with a first closed strip-shaped region, an outer edge of the first closed strip-shaped region being located between an edge of the first sheet and the first opening; and
a third sheet, provided with a fifth surface and a sixth surface, the fifth surface being connected to the fourth surface of the second sheet with a second closed strip-shaped region, so that an edge of the third sheet is connected to an edge of the second sheet in an enclosed manner so as to form a bag body having an opening;
the first opening is smaller than or equal to the second opening so that the opening of the bag body is the first opening, and the edge of the second opening is located between the first opening and the inner edge of the first closed strip-shaped region or coincide with the first opening and in the bag body, the edge of the second opening is separated from the edge of the first opening;
wherein the first sheet has a thickness of less than 0.1 mm;
a structure support unit, which extends along the edge of the first opening, and is disposed on the second surface of the first sheet, wherein the structure support unit substantially maintains a shape of the first opening, and substantially prevents forming wrinkles at the edge of the first opening; and therefore, a body fluid is prevented from leaking out from the edge of the first sheet through the wrinkles of the edge of the first opening.