Needeleless medication delivery system
OwnerKurt Van Laarinventor
Life of this patent
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Abstract
A Needleless injector patch for the intramuscular, subcutaneous, or intra-dermal delivery of a fluid medicament to a patient includes a plurality of cylindrical members “Micro-Injectors” which have a closed end and an sealed orifice end, the Micro-Jects contain a pyrotechnic charge, a piston and a quantity of medication. An onboard microprocessor programmatically selects the time to initiate a Micro-Ject unit by applying current to the pyrotechnic charge generating a volume of gas which pushes a piston pressurizing the medication to the point that a rupture element bursts allowing the medication to be expelled as a fine stream at high pressure that pierces the epidermis to a controlled depth delivering the medication as an injection.
Claims12
A Needleless Injection where in:
- a. The appearance is that of a traditional transdermal being approximately 12 mm wide by 100 mm long with a height of less than 10 mm-15 mm, and;
- b. There are a plurality of Micro-Ject injectors, and;
- c. Each of the Micro-Ject injectors preferably use a pyrotechnic charge a SoidumAzide compound [10] to generate a gas volume to drive a piston [40] forward compressing the injectable content of the medication volume [70], and;
- d. The compressed medication volume causes the rupture element [50] to rupture at a pre-selected pressure allowing the compressed medications [70] are forced through an orifice [60] creating a stream of the compressed material of such a diameter and velocity that it penetrates the subjects epidermis to a controlled depth, and;
- e. The scheduling of the initiating of each Micro-Ject injector is programmatically controlled by software resident in the microprocessor [100], and;
- f. The delivery depth is controlled by orifice diameter and pyrotechnic charge volume and the viscosity of the medication, where delivery is selectable from dermal to sub-quetanious.
Dependencies are inferred from the claim text.