Blood-flow-path switching device and blood-bag system
AssigneeTerumo Kabushiki Kaisha
InventorsKazuaki Kanamoto, Kaoru Hosoe
Life of this patent
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Abstract
In a blood-flow-path switching device and a blood-bag system, a tube-shaped body (68) includes a body tube (69) extending in an axial direction and a branching tube (71) extending in a direction branching from the axial direction, and a blocking part (74) is provided in a hollow section (69c) of the body tube (69). A communicating part (70) movable in the axial direction is provided in the hollow section (69c). By moving the communicating part (70) in a pushing direction and creating an opening by penetrating the blocking part (74), a communication of a first port (86) and a third port (90) is blocked, and at the same time, the first port (86) and a second port (88) are communicated with each other.
Claims12
A blood-flow-path switching device, comprising a tube-shaped body and a communicating part each having a flow path of a fluid in a hollow section formed in a hollow shape, wherein the tube-shaped body includes
- a body tube in a hollow shape extending in an axial direction, and
- a branching tube in a hollow shape connected to a halfway portion of the body tube (69) extending in a direction branching from the axial direction,
- the hollow section of the body tube includes a blocking part for blocking a flow of the fluid in the hollow section,
- the blocking part blocks a communication of a first port disposed on one side with respect to the blocking part and a second port disposed on the other side,
- the branching tube is connected to the body tube on a side of the first port with respect to the blocking part and includes a third port (90) disposed on the side of the first port (86) with respect to the blocking part and communicable with the first port,
- the communicating part is movable in the axial direction in the hollow section of the body tube (69) and is disposed in a movable manner to a predetermined moving position in a moving direction toward the blocking part, and
- when the communicating part moves to the predetermined moving position, the communication of the first port and the third port is blocked, the blocking part is opened, and the first port and the second port are communicated with each other.
A blood-bag system, comprising:
- a bag for accommodating blood or blood component;
- a tube that defines a flow path of the blood or the blood component to the bag;
- and
- a blood-flow-path switching device disposed for the tube, wherein
- the blood-flow-path switching device includes a tube-shaped body and a communicating part each having a flow path of a fluid in a hollow section formed in a hollow shape,
- the tube-shaped body includes
- a body tube in a hollow shape extending in an axial direction, and
- a branching tube in a hollow shape connected to a halfway portion of the body tube and extending in a direction branching from the axial direction,
- the hollow section of the body tube includes a blocking part for blocking a flow of the fluid in the hollow section,
- the blocking part blocks a communication of a first port disposed on one side with respect to the blocking part and a second port disposed on the other side,
- the branching tube is connected to the body tube on a side of the first port with respect to the blocking part and includes a third port disposed on the side of the first port with respect to the blocking part and communicable with the first port,
- the communicating part is movable in the axial direction in the hollow section of the body tube and is disposed in a movable manner to a predetermined moving position in a moving direction toward the blocking part, and
- when the communicating part moves to the predetermined moving position, the communication of the first port and the third port is blocked, the blocking part is opened, and the first port and the second port are communicated with each other.
Dependencies are inferred from the claim text.