Injector
First Claim
1. An injector for injection of at least one injection fluid, the injector comprisinga housing with a contact face for supporting the injector on the skin;
- at least one chamber placed in the housing and containing the at least one injection fluid;
an injection needle comprising a needle point displaceably placed, in a direction of activation intersecting both the at least one chamber and the contact face, in the housing from a position of rest where the needle point is in front of the at least one chamber—
seen in the direction of activation—
to an injection position where the point has penetrated the skin, wherein at least one recess is present in the needle point for receiving a fixed quantity of injection fluid when the injector is activated and when the recess in the needle point is passing the at least one chamber; and
at least one membrane connected to the housing and placed behind said at least one chamber.
1 Assignment
0 Petitions
Accused Products
Abstract
An injector serving for injection of an injection fluid is described. The injector includes a housing with a contact face for during injection supporting on the skin of a person. The injection fluid is placed in a chamber in the housing which furthermore contains an injection needle placed, in a direction of activation intersecting both the at least one chamber and the contact face, displaceably in the housing from a position of rest where the needle point is in front of the at least one chamber—seen in the direction of activation—to an injection position where the point has penetrated the skin. In the point is furthermore made an eye for, at activation of the injector, receiving a fixed quantity of injection fluid during the passage of the chamber, and after this, there is placed a membrane with a slot which during the injection process fits tightly around the needle and thereby sweeps off all fluid except for the fluid in the eye. An injection can be performed with greater easiness, quickness, precision and uniformity than known so far so that a uniform basis for a medical estimate of the type of allergy and the degree of this can be obtained with e.g., an allergy test.
100 Citations
20 Claims
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1. An injector for injection of at least one injection fluid, the injector comprising
a housing with a contact face for supporting the injector on the skin; -
at least one chamber placed in the housing and containing the at least one injection fluid;
an injection needle comprising a needle point displaceably placed, in a direction of activation intersecting both the at least one chamber and the contact face, in the housing from a position of rest where the needle point is in front of the at least one chamber—
seen in the direction of activation—
to an injection position where the point has penetrated the skin, wherein at least one recess is present in the needle point for receiving a fixed quantity of injection fluid when the injector is activated and when the recess in the needle point is passing the at least one chamber; and
at least one membrane connected to the housing and placed behind said at least one chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An injector for injection of at least one injection fluid, said injector comprising
a housing with a contact face for supporting the injector on the skin; -
at least one chamber placed in the housing and containing the at least one injection fluid;
an injection needle comprising a needle point and at least one recess in the needle for receiving a fixed quantity of injection fluid when the needle passes through the at least one chamber; and
at least one membrane connected to the housing and positioned between the at least one chamber and the contact face, wherein the needle point is positioned and configured to be displaced from a rest position through the at least one chamber and through the at least one membrane to an injection position where the needle point has been displaced beyond the contact face. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification