Subcutaneously implantable device for the supply of liquid medicaments

The subcutaneouly implantable device for the supply of liquid medicaments, especially insulin, comprises a chamber (1) having a round opening (2), a flat diaphragm (3) of an elastic material sealing the opening and a tube (5) connected to the chamber for the transport and delivery of medicament. The diaphragm (3) is piercable by an injection needle in order to introduce the medicament into the chamber. In order to ensure direct uptake of medicament at each injection and immediate intraperitoneal delivery as a bolus injection in a simple, cheap manner the chamber (1) of the device according to the invention is designed without a pumping piston and has a funnel-like tapering shape starting from the edge (4) of the opening to that part of the chamber which is remote from the diaphragm (3) immediately adjoined by the tube (5). This funnel-shaped chamber can be implanted directly under the skin in subcutaneous fatty tissue, the end of the tube coming to rest in the abdominal cavity between the intestines and permitting the patient to inject, for example, insulin through the skin and diaphragm into the chamber from where it passes into the abdominal cavity and is quickly absorbed.