Implantable insulin administration device

Claim 2

An implantable device for administering a measured amount of liquid drug comprising: a container of flexible material for storing the liquid drug; means for percutaneously filling the container; a pump including a pair of cup-shaped members, joined together at their outer peripheries, each of said cup-shaped members having a concave side and a convex side, the concave sides of said cup shaped members facing toward one another, the convex sides of said cup-shaped members facing away from each other; and, tubing means connecting said container and said pump and leading away from said pump for discharge in the body.

Claim 3

The implantable device of claim 1 wherein said means for percutaneously filling the container comprises a second container connected to said first mentioned container by tubing, said second container being made from silastic, a metal housing surround the silastic and maintaining it in a compressed condition, said housing having a metal grill permitting injection of a needle through the grill and silastic into the second container, a metal disc on the inside of said second container as a stop for a needle.

Claim 4

An implantable device for administering a measured amount of liquid drug comprising: a container of flexible material for storing the liquid drug; means for percutaneously filling the container; and, a pump including a resiliently compressible receptacle, a first check valve connected between said container and said receptacle and allowing flow only from said container toward said receptacle and a second check valve connected to said receptacle and leading away from said receptacle for discharge in the body, said second check valve allowing flow only from said receptacle for discharge in the body.

Claim 5

An implantable device for administering a measured amount of liquid drug comprising: a container of flexible material for storing the liquid drug; means for percutaneously filling the container; and, a pump including a resiliently compressible receptacle, a first check valve connected between said container and said receptacle and allowing flow only from said container toward said receptacle and a second check valve connected to said receptacle and leading away from said receptacle for discharge in the body, said second check valve allowing flow only from said receptacle for discharge in the body.

Claim 6

The implantable device of claim 3 wherein said means for percutaneously filling the container comprises a second container connected to said first mentioned container by tubing, said second container being made from silastic, a metal housing surrounding the silastic and maintaining it in a compressed condition, said housing having a metal grill permitting injection of a needle through the grill and silastic into the second container, a metal disc on the inside of said second container as a stop for a needle.

Claim 7

The implantable device of claim 4 additionally comprising: first flexible tubing connecting said means for filling and said container; an auxiliary pump including a second resiliently compressible receptacle; second flexible tubing connecting said container and said auxiliary pump; third flexible tubing connecting said auxiliary pump and said first check valve; fourth flexible tubing connecting first check valve and said first mentioned pump; fifth flexible tubing connecting said first mentioned pump and said second check valve; and, sixth flexible tubing leading from said check valve for discharge in the body.

Claim 8

The implantable device of claim 4 additionally comprising flexible tubing connecting said means for filling to said container, connecting said container to said first check valve, connecting said first check valve to said pump, connecting said pump to said second check valve, and leading from said second check valve for discharge in the body.

Claim 9

The implantable device of claim 5 wherein each of said check valves comprises a tube having an external cylindrical surface and a closed end, said tube having a first passageway which opens through the external cylindrical surface, a housing surrounding said closed end and said passageway, said housing being closed except for a discharge passageway, and a flexible, stretchable, expandable tubular member fixed to said tube and covering said passageway, said flexible tubular member being adopted to stretch and expand to permit flow to occur from said tube through said first passageway past said flexible tubular member into said housing and out said discharge passageway when the pressure in said first passageway is greater than the pressure in said housing, said flexible member being adapted to contract around said tube and said first passageway to block flow from said housing into said first passageway and tube when the pressure in said housing is greater than the pressure in said first passageway.

Claim 10

The implantable device of claim 5 wherein said storing container has an upper end and a lower end, said second flexible tubing extending from the lower end of said storing container to said auxiliary pump, cellular plastic reinforcing said upper and lower ends of said storing container, said cellular plastic having suture holes therein for securing said storing container within the properitoneal fat.