VARIABLE-LENGTH NEEDLE COVERING DEVICE OF AN INJECTION DEVICE
First Claim
1. An injection device comprising:
- a casing for enclosing a reservoir for a fluid product and an injection needle; and
a needle covering device, wherein the needle covering device comprises;
a rear section for attaching the needle covering device to the injection device;
a retractable front section nondetachably coupled to the rear section and linearly and axially moveable through a range of motion relative to the rear section so as to define an extended position that substantially surrounds the injection needle and a retracted position that exposes the injection needle, wherein a portion of the front section may be abutted against a surface to be injected and the front section is moveable through the range of motion generally freely;
a concertina wall disposed between the front section and the rear section; and
a contact for activating the automatic delivery of the fluid product, the contact coupled to the retractable front section, wherein the contact extends through the rear section into the casing when the retractable front section is in the retracted position to activate the injection device.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention relates to a needle covering device of an injection device, the injection device including a casing comprising a reservoir, in particular an ampoule, for a product fluid to be administered, and an injection needle for injecting the product fluid from the reservoir, wherein the device surrounds the injection needle in an extended position and exposes the injection needle in a retracted position. The device comprises a passage for the injection needle, a front section via which the device is placed on an injection point, and another section which is nearer to the casing than the front section is, at least in the extended position. The sections can be moved axially relative to the casing and relative to each other, such that the device is variable in its length, the front section being guided in a straight line on the casing.
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Citations
34 Claims
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1. An injection device comprising:
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a casing for enclosing a reservoir for a fluid product and an injection needle; and
a needle covering device, wherein the needle covering device comprises;
a rear section for attaching the needle covering device to the injection device;
a retractable front section nondetachably coupled to the rear section and linearly and axially moveable through a range of motion relative to the rear section so as to define an extended position that substantially surrounds the injection needle and a retracted position that exposes the injection needle, wherein a portion of the front section may be abutted against a surface to be injected and the front section is moveable through the range of motion generally freely;
a concertina wall disposed between the front section and the rear section; and
a contact for activating the automatic delivery of the fluid product, the contact coupled to the retractable front section, wherein the contact extends through the rear section into the casing when the retractable front section is in the retracted position to activate the injection device. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An injection device comprising:
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a casing for enclosing a reservoir for a fluid product and an injection needle; and
a needle covering device, wherein the needle covering device comprises;
a rear section for attaching the needle covering device to the injection device;
a retractable front section nondetachably coupled to the rear section and linearly and axially moveable through a range of motion relative to the rear section so as to define an extended position that substantially surrounds the injection needle and a retracted position that exposes the injection needle, wherein a portion of the front section may be abutted against a surface to be injected and the front section is moveable through the range of motion generally freely;
a concertina wall disposed between the front section and the rear section; and
a mechanical contact for activating the automatic delivery of the fluid product, the mechanical contact coupled to the retractable front section, wherein the mechanical contact extends through the rear section into the casing when the retractable front section is in the retracted position to activate the injection device. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An injection device, comprising:
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a casing for enclosing a reservoir for a fluid product and an injection needle; and
a needle covering device, wherein the needle covering device comprises;
a rear section for attaching the needle covering device to the injection device;
a retractable front section nondetachably coupled to the rear section and linearly and axially moveable through a range of motion relative to the rear section so as to define an extended position that substantially surrounds the injection needle and a retracted position that exposes the injection needle, wherein a portion of the front section may be abutted against a surface to be injected and the front section is moveable through the range of motion generally freely;
a concertina wall disposed between the front section and the rear section; and
an electrical contact for activating the automatic delivery of the fluid product, the electrical contact coupled to the retractable front section, wherein the electrical contact extends through the rear section into the casing when the retractable front section is in the retracted position to activate the injection device. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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24. An injection device, comprising:
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a casing for enclosing a reservoir for a fluid product and an injection needle; and
a needle covering device, wherein the needle covering device comprises;
a rear section for attaching the needle covering device to the injection device;
a retractable front section nondetachably coupled to the rear section and linearly and axially moveable through a range of motion relative to the rear section so as to define an extended position that substantially surrounds the injection needle and a retracted position that exposes the injection needle, wherein a portion of the front section may be abutted against a surface to be injected and the front section is moveable through the range of motion generally freely;
a concertina wall disposed between the front section and the rear section; and
a magnetic contact for activating the automatic delivery of the fluid product, the magnetic contact coupled to the retractable front section, wherein the magnetic contact extends through the rear section into the casing when the retractable front section is in the retracted position to activate the injection device. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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31. An injection device comprising:
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a casing for enclosing a reservoir for a fluid product and an injection needle; and
a needle covering device, wherein the needle covering device comprises;
(a) a rear section for attaching the needle covering device to the injection device;
(b) a retractable front section nondetachably coupled to the rear section and linearly and axially moveable through a range of motion relative to the rear section so as to define an extended position that substantially surrounds the injection needle;
(c) a retracted position that exposes the injection needle, wherein a portion of the front section may be abutted against a surface to be injected and the front section is moveable through the range of motion generally freely, and wherein the front section in the retracted position presses against a switch that lies opposite a placing area on the injection needle;
(d) a bellows section disposed between the front section and the rear section; and
(e) a contact for activating the automatic delivery of the fluid product, the contact connected to the retractable front section, wherein the contact extends through the rear section into the casing when the retractable front section is in the retracted position to activate the injection device. - View Dependent Claims (32, 33, 34)
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Specification