Fluid transfer device and method of use

A method of accessing and transferring fluid inside a vial through a pierceable seal on the vial, comprising:

• connecting a syringe to a piercing element, said piercing element having an exterior surface, an interior bore, a distal point and at least one hole at or near said point in fluid communication with said bore, and a locking structure projecting outward from the exterior surfac of said piercing element, whereby said locking structure permits penetration of the pierceable seal by said piercing element, but prohibits withdrawal of th piercing element back through the pierceable seal;
• piercing said pierceable seal with said piercing element;
• inserting said piercing element into the vial until said hole in said piercing element contacts the fluid inside the vial;
• withdrawing a desired amount of fluid through the internal bore in said piercing element and into the syringe;
• and
• separating the syringe from the piercing element, such that the locking structure on the piercing element prohibits the withdrawal of the piercing element through said pierceable seal.

A locking cannula for advancing through a pierceable seal and resisting retraction therefrom, comprising:

• a housing;
• a piercing element on said housing;
• and
• a locking structure connected to said housing for advancing through a seal and resisting retraction therefrom.

A medical valve adaptor for use with containers of fluid, said valve adaptor comprising:

• a first body having proximal and distal ends, and a cavity therein;
• a first spike located within said cavity and attached to said proximal end;
• a seal located on said first spike;
• one or more tabs connected to said first body and extending from said first body into said cavity and against said first spike to lock said first spike and seal within the cavity in said first body;
• a tubular second body having proximal and distal ends;
• a tubular second spike located on the distal end of said second body and in fluid communication therewith;
• and
• a locking mechanism located on the proximal end of said second body, said locking mechanism adapted to secure the proximal end of said first body to, and in fluid communication with, the proximal end of said second body.

A medical three-way valved connector for use with containers of fluid, said valved connector comprising:

• a first body having proximal and distal ends, and a cavity therein;
• a spike located within said cavity-and attached to said proximal end of said first body;
• a seal located on said spike;
• one or more tabs connected to said first body and extending from said first body into said cavity and against said spike to lock said spike and seal within the cavity in said first body;
• a tubular second body having proximal and distal ends;
• a tubular branch located at an angle to, and toward the proximal end of, said second body, and in fluid communication therewith;
• and
• a locking mechanism located on the proximal end of said second body, said locking mechanism adapted to secure the proximal end of said first body to, and in fluid communication with, the proximal end of said second body.

A medical valve adaptor for use with medical three-way fluid connectors, said valve adaptor comprising:

• a first body having proximal and distal ends, and a cavity therein;
• a first spike located within said cavity and attached to the proximal end of said first body;
• a seal located on said first spike;
• one or more tabs connected to said first body and extending from said first body into said cavity and against said first spike to lock said first spike and seal within the cavity in said first body;
• a tubular second body having proximal and distal ends;
• a cylindrical housing adapted to surround the end of said three-way connector and located on the distal end of said second body;
• a tubular second spike located on the distal end of said second body and within said housing, and in fluid communication with said second body;
• a hook located on said housing and adapted to engage said three-way connector such that said valved adaptor is secured to said three-way connector;
• and
• a locking mechanism located on the proximal end of said second body, said locking mechanism adapted to secure the proximal end of said first body to, and in fluid communication with, the proximal end of said second body.

A medical valve adaptor for use with medical three-way fluid connectors, said valve adaptor comprising:

• a first body having proximal and distal ends, and a cavity therein;
• a first spike located within said cavity and attached to the proximal end of said first body;
• a seal located on said first spike;
• one or more tabs connected to said first body and extending from said first body into said cavity and against said first spike to lock said first spike and seal within the cavity in said first body;
• a tubular second body having proximal and distal ends;
• a cylindrical housing adapted to surround the end of said three-way connector and located on the distal end of said second body;
• a tubular second spike located on the distal end of said second body and within said housing, and in fluid communication with said second body;
• an opening having one or more tabs, said opening located on said housing and adapted to engage said three-way connector such that said valved adaptor is secured to said three-way connector and partially held in place by said tabs;
• and
• a locking mechanism located on the proximal end of said second body, said locking mechanism adapted to secure the proximal end of said first body to, and in fluid communication with, the proximal end of said second body.

A medical valve adaptor for use with narrowly necked fluid containers, said valve adaptor comprising:

• a first body having proximal and distal ends, and a cavity therein;
• a first spike located within said cavity and attached to the proximal end of said first body;
• a seal located on said first spike;
• one or more tabs connected to said first body and extending from said first body into said cavity and against said first spike to lock said first spike and seal within the cavity in said first body;
• a tubular second body having proximal and distal ends;
• an open-ended tube adapted to reach into and withdraw fluids from said narrowly necked container, said tube located on the distal end of and in fluid communication with said second body;
• and
• a locking mechanism located on the proximal end of said second body, said locking mechanism adapted to secure the proximal end of said first body to, and in fluid communication with, the proximal end of said second body.