초록 ▼

A suction injector comprises a suction cup and an exchangeable cannula inserted into the cup for injecting a liquid medicine under human skin by the action of a piston movable in a cylinder. The suction cup is formed with an outer chamber which accumulates negative pressure and an inner chamber clos

A suction injector comprises a suction cup and an exchangeable cannula inserted into the cup for injecting a liquid medicine under human skin by the action of a piston movable in a cylinder. The suction cup is formed with an outer chamber which accumulates negative pressure and an inner chamber closed with a membrane which is placed over the skin to be treated. A tubular member is provided in the suction cup having a number of flexible projections adapted to prevent communication of the negative pressure in the outer chamber to the inner chamber until the membrane is in pressure contact with the skin and to break this communication when the membrane with the skin are lifted towards the cannula.

대표청구항 ▼

A suction injector, particularly for use with hypodermic injections, comprising a container filled with a liquid medicine; a piston arranged for movement in said container; a cannula operatively connected to said container; a suction cup having an outer cylindrical portion defining an outer chamber

A suction injector, particularly for use with hypodermic injections, comprising a container filled with a liquid medicine; a piston arranged for movement in said container; a cannula operatively connected to said container; a suction cup having an outer cylindrical portion defining an outer chamber and an inner cylindrical portion defining an inner chamber, said inner chamber having a surface to be positioned over human skin to be treated, said inner portion having an aperture for receiving said cannula through which the liquid medicine is discharged upon the movement of said piston and at negative pressure which is accumulated in said outer chamber during fabrication; and means for preventing communication of the negative pressure in said outer chamber to said inner chamber until said inner chamber is in pressure contact with the skin.