Blood bag system and manufacturing method therefor
AssigneeTerumo Kabushiki Kaisha
InventorMasatsugu IGARASHI
Life of this patent
Estimating the term…
Abstract
A blood bag system is equipped with a blood collection bag in which blood is accommodated, a parent bag and a child bag in which blood components separated from the blood are accommodated, and flow paths that connect the blood collection bag and the parent bag. The blood collection bag, the parent bag, the child bag, and the flow paths are formed integrally by a first sheet body and a second sheet body that is superimposed on the first sheet body, and meandering sections which are repeatedly folded back on themselves are provided in the flow paths.
Claims7
A blood bag system equipped with a plurality of bags in which blood is accommodated, and flow paths connecting the plurality of bags, the blood bag system comprising:
- a main body portion integrally formed by a first sheet body, and a second sheet body that is superimposed on the first sheet body;
- wherein the main body portion comprises:
- a first bag in which the blood is accommodated;
- a second bag in which a blood component contained in the blood is accommodated;
- a first flow path connecting the first bag and the second bag;
- and
- a meandering section in which portions of the first flow path are repeatedly folded back on themselves, and adjacent portions of the first flow path are fusion bonded to each other;
- wherein the fusion bonded portions of the first flow path of the meandering section are connected via thin-walled cuttable portions configured to be separatable.
A method of manufacturing a blood bag system equipped with a first bag in which blood is accommodated, a second bag in which a blood component separated from the blood is accommodated, and a first flow path connecting the first bag and the second bag, wherein the first bag, the second bag, and the first flow path are integrally formed by a first sheet body, and a second sheet body that is superimposed on the first sheet body, and the first flow path includes a meandering section that is repeatedly folded back on itself, the method of manufacturing the blood bag system comprising:
- a step of preparing a first sheet body in which a first bag formation planned portion, a second bag formation planned portion, and a preprocessing unit formation planned portion are integrally connected, and a second sheet body in which a first bag formation planned portion, a second bag formation planned portion, and a preprocessing unit formation planned portion are integrally connected;
- a superimposing step of superimposing the second sheet body on the first sheet body;
- and
- a fusion bonding step of fusion bonding the first sheet body and the second sheet body at peripheral edge portions of the first bag formation planned portions, the second bag formation planned portions, and the preprocessing unit formation planned portions while blowing air between the first sheet body and the second sheet body, to thereby form the first bag, the second bag, and the first flow path respectively in the first bag formation planned portions, the second bag formation planned portions, and the preprocessing unit formation planned portions;
- wherein, in the fusion bonding step, the meandering section of the first flow path that is repeatedly folded back on itself is formed in the preprocessing unit formation planned portions.
Dependencies are inferred from the claim text.