摘要:
An assembly (10) for collecting blood or other body fluids is provided. The assembly (10) includes an elongate tube (12) having an open end and a closed end. The open end includes threads. An internally threaded plastic cap (22) is mounted to the open end of the tube (12). The cap (22) includes an axial passage and a resealable member (24) aligned with the axial passage. A gas-impermeable member (44) is bonded to the resealable member (24) and the open end of the tube. Both the resealable member (24) and gas-impermeable member (44) are pierceable by a needle (18). The cap (22) is removable with the resealable member (24) and the gas-impermeable member (44) as a unit due to the fact that the bond between the gas-impermeable member (44) and the tube is weaker than that between the gas-impermeable member (44) and the resealable member (24). The cap (22) includes a deflectable portion (28) near its top end to engage the walls of a tube holder (16), and to function as a shock absorber if the tube (12) is dropped.
摘要:
A device and method is provided for separating heavier and lighter fractions of a fluid sample. The device includes a plurality of constituents comprising a container and a composite element in the container. The composite element is a separator comprising at least two components and more particularly an elastic portion and a plug member. A fluid sample is delivered to the container and the device is subjected to centrifugation whereby the centrifugal load causes the elastic portion of the separator to deform so that the separator migrates into the fluid sample and stabilizes between the heavier and lighter fractions of the fluid sample. The elastic portion of the separator will resiliently return to its initial configuration upon termination of the centrifugal load such that the elastic portion sealingly engages the container and separates the heavier and lighter fractions of the fluid sample.
摘要:
A device and method is provided for separating heavier and lighter fractions of a fluid sample. The device includes a plurality of constituents. The constituents include a container, a liner in the container and a composite element in the liner for separating the fractions of a fluid sample. The separator comprises a specific density at a target density range as defined by separable fluid components densities. A fluid sample is delivered to the liner and then the device is subjected to centrifugation whereby the centrifugal load causes the liner to deform and the composite element migrates into the fluid sample and stabilizes between the heavier and lighter fractions of the fluid sample. The liner will resiliently return to its initial configuration upon termination of the centrifugal load such that the liner sealingly engages the composite element and separates the heavier and lighter fractions of the fluid sample
摘要:
An assembly for collecting blood or other body fluids is provided. The assembly includes an elongate tube (12) having an open end and a closed end. An internally threaded plastic cap (22) is mounted to the open end of the tube. The cap includes an axial passage (34) and a resealable member (24) aligned with the axial passage. A gas-impermeable member (44) is bonded to the resealable member and the open end of the tube. Both the resealable member and gas-impermeable member are pierceable by a needle. The cap includes a deflectable portion (28) near its top end to engage the walls of a tube holder (16), and to function as a shock absorber if the tube is dropped.
摘要:
An assembly for collecting blood or other body fluids is provided. The assembly includes an elongate tube (12) having an open end and a closed end. The open end includes threads (20). An internally threaded plastic cap (22) is mounted to the open end of the tube. The cap includes an axial passage (34) and a resealable member (24) aligned with the axial passage. A gas-impermeable member (44) is bonded to the resealable member (24) and the open end of the tube. Both the resealable member and gas-impermeable member are pierceably by a needle. The tube (17) includes external interrupt threads (20) and the cap (22) includes a plurality of internal threads, each of which has a lead portion. The cap (22) further includes locating tabs (40) positioned adjacent the leading portions of the internal threads, for facilitating the engagement of the tube threads (20) and the cap threads (38).
摘要:
An assembly for collecting blood or other body fluids is provided. The assembly includes an elongate tube having an open end and a closed end. The open end includes threads. An internally threaded plastic cap is mounted to the open end of the tube. The cap includes an axial passage and a resealable member aligned with the axial passage. A gas-impermeable member is bonded to the resealable member and the open end of the tube. Both the resealable member and gas-impermeable member are pierceable by a needle. The cap is removable with the resealable member and the gas-impermeable member as a unit due to the fact that the bond between the gas-impermeable member and the tube is weaker than that between the gas-impermeable member and the resealable member. The cap includes a deflectable portion near its top end to engage the walls of a tube holder, and to function as a shock absorber if the tube is dropped.