摘要:
The present invention is polymer compositions and their blends. The polymer blends comprise polyethylene naphthalate, an oxidizable resin and an oxidation catalyst. The polymer compositions and their blends are useful for providing an effective barrier against gas permeability in containers and for extending shelf-life of containers, especially evacuated blood collection devices.
摘要:
A co-injection process is provided for fabricating improved multi-layer containers, including but not limited to blood collection tubes, evacuated blood collection tubes, culture bottles, centrifuges tubes, and syringe barrels. The container includes a tube (10) having a bottom wall (12) and a side wall (14) with an open end (18). The container can be provided with a stopper having an upper portion (22) and a skirt with an outside portion (30), a well (34) and a cavity (36). The tube and stopper assembly can be used for medical purposes including containing a blood sample within an enclosed interior space (40).
摘要:
A stopper is provided, particularly for evacuated blood sample tubes, comprised of a combination of thermoplastic and rubber, which combination utilizes plurality of circumferentially spaced joints containing an adhesive. The joints serve to mechanically hold the composite body of rubber and plastic together. The arrangement reduces the quantity of rubber used while retaining its desirable sealing properties, and reducing the quantity of relatively inexpensive thermoplastic and its desirable strength properties. The invention takes advantage of the relatively good joining properties of a rubber-adhesive combination, and avoids the relatively poor joining properties of a thermoplastic adhesive combination.
摘要:
The invention relates to a multilayer evacuated blood collection tube (10) comprising: a bottom wall (12), a top edge (16), and a sidewall (14) between the bottom wall (12) and the top edge (16) comprising co-injected inner and outer polymeric skin layers and a polymeric core layer, wherein the core layer is located between and directly adjacent the inner and outer polymeric skin layers, with the polymeric skin layers being non-compatible with the polymeric core layer, wherein the inner and outer polymeric skin layers encapsulate the core layer and the top edge has a cross-section of only the inner and outer skin layers to physically restrain the core layer from delamination from the inner and outer skin layers.
摘要:
An additive formulation comprising heparinase and trehalose, a method for using the formulation and a device containing the formulation. The additive formulation is useful in substantially neutralizing residual heparin from a blood sample when used in a blood collection tube without interfering with the clinical analysis of the blood sample.
摘要:
A co-injection process is provided for fabricating improved multi-layer containers, including but not limited to blood collection tubes, evacuated blood collection tubes, culture bottles, centrifuges tubes, and syringe barrels. The container includes a tube (10) having a bottom wall (12) and a side wall (14) with an open end (18). The container can be provided with a stopper having an upper portion (22) and a skirt with an outside portion (30), a well (34) and a cavity (36). The tube and stopper assembly can be used for medical purposes including containing a blood sample within an enclosed interior space (40).
摘要:
A blood collection assembly (10) includes a tube (12), preferably plastic, an elastomeric stopper (14) and a siliceous insert (40) immobilized in the tube (12) under the stopper (14). In a method for taking a blood sample using the assembly, the stopper (74) is punctured and the sample is discharged onto the insert (40) to initiate clotting.