Medicament administration apparatus

摘要

An apparatus for removal of premixed drugs or reconstitution of lyophilized drugs and for the injection of the reconstituted drug into the patient. The apparatus includes a syringe assembly and an adapter assembly that can be removably connected to a medicament container containing a premixed drug or lyophilized medicament. The syringe assembly of the apparatus includes a liquid chamber between the forward end of the body portion and the piston and a syringe cannula assembly. The syringe cannula assembly, which can be removably interconnected with the body portion, comprises a cannula support and a hypodermic needle sealably connected to the cannula support. The adapter assembly comprises an adapter preferably molded from a moldable plastic that includes a top wall, an adapter cannula connected to and extending from the top wall and a variety of connectors connected to the top wall for removably interconnecting the adapter with the medicament container.

主权项

1. A vial accessing assembly for interconnecting an aspirator with a medicament container containing a medicament, comprising:
(a) an adapter including:
(i) a top wall;(ii) a resiliently deformable skirt connected to and extending from said top wall in a first direction for receiving a portion of the medicament container;(iii) a connector extension connected to and extending from said top wall in a second direction, said connector extension having an outer wall and a inner wall defining a tapered bore;(iv) an adapter cannula connected to and extending from said top wall in a first direction, said adapter cannula having a lumen in communication with said bore of said connector extension; and(v) filter means for filtering particulate matter from medicament aspirated from the medicament container; (b) a needle sheath connected to said connector extension and including:
(i) a yieldably deformable outer wall having a lower portion and an upper portion terminating in a generally annular shaped tapered flange defining an opening, said yieldably deformable outer wall being movable between a first position and a second position;(ii) an inner wall connected to said outer wall, said inner wall having an upper portion having a tapered opening and a lower portion; and (c) an aspirator connector for interconnection with an aspirator, said aspirator connector being received within said opening defined by said tapered flange of said needle sheath and including:
(i) an outer wall having a circumferentially extending locking rim for lockably engaging said tapered flange of said needle sheath;(ii) a luer connector connected to said outer wall; and(iii) a needle connected to and extending from said outer wall, said needle being receivable within said lower portion of said inner wall of said needle sheath.