Patent ID: 11938256
Assignee: TERUMO KABUSHIKI KAISHA
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A blood component collection cassette for use with a blood component separation device, the blood component collection cassette comprising:
a cassette body having a sheet shape made of a soft material and including:
a first flow path formed in the soft material for sending whole blood collected from a donor to the blood component separation device;
a second flow path formed in the soft material for returning a predetermined blood component to the donor, wherein the first flow path and the second flow path are separate flow paths over a first section of the cassette body, wherein the first flow path and the second flow path overlap with one another in at least one second section of the cassette body, wherein the first flow path comprises a load detection soft portion located in the first section and made of the soft material for detecting internal pressure of the blood component collection cassette;
a filter disposed in the second flow path, wherein the first flow path in the first section bypasses the filter,
wherein the at least one second section of the cassette body, in which the first and second flow paths overlap, includes a first overlap part adjacent to a first edge of the cassette body and a second overlap part adjacent to a second edge of the cassette body opposite the first edge, and
wherein the first section of the cassette body, in which the first and second flow paths are separate, extends between the first overlap part and the second overlap part;

a first port member provided at the first edge of the cassette body and in fluid communication with the first overlap part, wherein the whole blood from the donor enters the cassette body through the first port member, and wherein the predetermined blood component exits the cassette body through the first port member; and
a second port member provided at the second edge of the cassette body and in fluid communication with the second overlap part, wherein the whole blood from the donor exits the cassette body through the second port member, and wherein the predetermined blood component enters the cassette body through the second port member,
wherein, in a plan view, the first overlap part is between the first port member and the filter along a first direction that extends from the first edge to the second edge of the cassette body, and
wherein, in the plan view, the second overlap part is between the second port member and the filter along the first direction.