Biological component collection cassette, kit, or system, and method of manufacture
AssigneeTerumo Kabushiki Kaisha
InventorMasatsugu Igarashi
Life of this patent
Estimating the term…
Abstract
A blood component collection cassette has a flow path in the interior thereof through which blood flows, and a cassette main body composed of a resin that possesses flexibility. The cassette main body includes a first constituent part in which a plurality of concavities and convexities are formed. Furthermore, a resin sheet includes a second constituent part, which is provided on one portion of an outer surface of the flow path wall portion that constitutes the flow path, and in which the plurality of concavities and convexities do not exist.
Claims20
A biological component collection cassette having a flow path through which a liquid containing at least one biological component flows, comprising:
- a cassette main body including a first flexible sheet and a second flexible sheet,
- wherein the cassette main body includes an outer surface having a first part that includes a plurality of concavities and convexities, and a second part on which the plurality of concavities and convexities do not exist,
- wherein the second part is provided:
- on at least a first portion of a flow path wall of the flow path;
- and
- on the outer surface of the cassette main body along a border of the flow path that corresponds to a sealed section between the first flexible sheet and the second flexible sheet, and
- wherein the first part is provided:
- on at least a second portion of the flow path wall;
- and
- on a section of the outer surface of the cassette main body that is adjacent to the sealed section.
A biological component collection system comprising:
- a biological component collection kit including a tube;
- a biological component collection cassette communicating with the tube, and having a flow path through which a liquid containing at least one biological component flows;
- a biological component separation device to which the biological component collection kit is attached, and through which the at least one biological component contained within the liquid is allowed to flow;
- wherein the biological component collection cassette comprises a cassette main body including a first flexible sheet and a second flexible sheet,
- wherein the cassette main body includes an outer surface having a first part that includes a plurality of concavities and convexities, and a second part on which the plurality of concavities and convexities do not exist,
- wherein the second part is provided:
- on at least a first portion of a flow path wall of the flow path;
- and
- on the outer surface of the cassette main body along a border of the flow path that corresponds to a sealed section between the first flexible sheet and the second flexible sheet,
- wherein the first part is provided:
- on at least a second portion of the flow path wall;
- and
- on a section the outer surface of the cassette main body that is adjacent to the sealed section,
- wherein the biological component separation device includes a cassette mount in which the biological component collection cassette is mounted, and
- wherein the cassette mount includes a sensor to detect a state of the liquid, the sensor facing toward the second part.
A method of manufacturing a biological component collection cassette having a flow path through which a liquid containing at least one biological component flows, the method comprising:
- forming a first part on an outer surface of first and second resin sheets, the first part having a plurality of concavities and convexities;
- forming a second part on the outer surface of the first and second resin sheets by applying heat to a predetermined position of the first and second resin sheets to make the second part smooth;
- and
- sealing the first and second resin sheets along a sealed section to form a flow path wall of the flow path, the flow path wall comprising the first part and the second part, wherein sealing the first and second resin sheets makes the plurality of concavities and convexities smooth along a border of the flow path that corresponds to the sealed section between the first resin sheet and the second resin sheet.
Dependencies are inferred from the claim text.