Administering apparatus comprising a dosage display
First Claim
1. An administering apparatus with a dosage display, comprising:
- a) a casing comprising a front casing section and a rear casing section, and a reservoir for a fluid product, wherein the front casing section and the rear casing section are plugged into each other along a common central longitudinal axis, in a non-releasable connection, whereby the front casing section and the rear casing section cannot be moved relative to each other, either axially or rotationally about the longitudinal axis;
b) a driven device which acts on said product contained in said reservoir, in order to deliver product;
c) a dosing means, using which a product dosage to be delivered can be selected, and which comprises a dosage scale with a number of dosage marks axially spaced out from each other; and
d) a drive device coupled to said driven device for driving the driven device, said drive device performing a delivery stroke from an initial position, in a drive direction, up to a delivery stopper, the length of said delivery stroke counter to the drive direction being limited by selecting the product dosage by said dosing means;
e) wherein said casing is transparent, at least in an area overlapping said dosage scale;
f) the drive device carries an indicator marking, in order to indicate the initial position of the drive device through the transparent area of the casing, relative to said dosage marks;
g) the driven device comprises a piston and a piston rod acting on the piston in the drive direction to deliver product from the reservoir by axially moving the piston in the drive direction, wherein the drive device is moveable counter to the drive direction as far as an adjustable dosing stopper, and the piston rod is prevented from moving counter to the drive direction and is coupled to the drive device such that it is slaved by the drive device in the drive direction; and
whereinh) an outer surface of the piston rod comprises rows of teeth, the rear casing section comprising blocking elements which engage the rows of teeth such that the piston rod is permitted to move in an advancing direction but not counter to the advancing direction.
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Accused Products
Abstract
An administering apparatus with a dosage display, including a casing, a reservoir for a fluid product, a driven device which acts on the product, a dosing means for selecting a product dosage to be delivered which includes a dosage scale including a number of dosage marks axially spaced from each other, and a drive device coupled to the driven device for driving the driven device, the drive device performing a delivery stroke from an initial position, in a drive direction, to a delivery stopper, the length of the delivery stroke counter to the drive direction being limited by selecting the product dosage using the dosing means, wherein the casing is transparent at least in an area overlapping the dosage scale, and wherein the drive device forms an indicator to the dosage scale in order to indicate the initial position of the drive device.
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Citations
27 Claims
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1. An administering apparatus with a dosage display, comprising:
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a) a casing comprising a front casing section and a rear casing section, and a reservoir for a fluid product, wherein the front casing section and the rear casing section are plugged into each other along a common central longitudinal axis, in a non-releasable connection, whereby the front casing section and the rear casing section cannot be moved relative to each other, either axially or rotationally about the longitudinal axis; b) a driven device which acts on said product contained in said reservoir, in order to deliver product; c) a dosing means, using which a product dosage to be delivered can be selected, and which comprises a dosage scale with a number of dosage marks axially spaced out from each other; and d) a drive device coupled to said driven device for driving the driven device, said drive device performing a delivery stroke from an initial position, in a drive direction, up to a delivery stopper, the length of said delivery stroke counter to the drive direction being limited by selecting the product dosage by said dosing means; e) wherein said casing is transparent, at least in an area overlapping said dosage scale; f) the drive device carries an indicator marking, in order to indicate the initial position of the drive device through the transparent area of the casing, relative to said dosage marks; g) the driven device comprises a piston and a piston rod acting on the piston in the drive direction to deliver product from the reservoir by axially moving the piston in the drive direction, wherein the drive device is moveable counter to the drive direction as far as an adjustable dosing stopper, and the piston rod is prevented from moving counter to the drive direction and is coupled to the drive device such that it is slaved by the drive device in the drive direction; and
whereinh) an outer surface of the piston rod comprises rows of teeth, the rear casing section comprising blocking elements which engage the rows of teeth such that the piston rod is permitted to move in an advancing direction but not counter to the advancing direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An administering apparatus with a dosage display, comprising:
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a) a casing comprising a front casing section and a rear casing section, and a reservoir for a fluid product, wherein the front casing section and the rear casing section are plugged into each other along a common central longitudinal axis, in a non-releasable connection, whereby the front casing section and the rear casing section cannot be moved relative to each other, either axially along or rotationally about the longitudinal axis; b) a driven device which acts on said product contained in said reservoir, in order to deliver product; c) a dosing means, using which a product dosage to be delivered can be selected, and which comprises a dosage scale with a number of dosage marks axially spaced out from each other; and d) a drive device coupled to said driven device for driving the driven device, said drive device performing a delivery stroke from an initial position, in a drive direction, up to a delivery stopper, the length of said delivery stroke counter to the drive direction being limited by selecting the product dosage by means of said dosing means; e) wherein said casing is transparent, at least in an area overlapping said dosage scale; f) wherein the drive device carries an indicator marking, in order to indicate the initial position of the drive device through the transparent area of the casing, relative to said dosage marks; g) wherein the dosing means comprises another indicator, in order to display the product dosage selected on the dosage scale or on another dosage scale; h) said indicator marking of the drive device and said other indicator overlap in the initial position of the drive device, if the drive device can perform the maximum stroke, set by selecting the product dosage, from the initial position; i) the driven device comprises a piston and a piston rod acting on the piston in the drive direction to deliver product from the reservoir by axially moving the piston in the drive direction, the drive device moveable counter to the drive direction to an adjustable dosing stopper, and the piston rod is prevented from moving counter to the drive direction and is coupled to the drive device such that it is slaved by the drive device in the drive direction; and
whereinj) an outer surface of the piston rod comprises rows of teeth, the rear casing section comprising blocking elements which engage the rows of teeth whereby the piston rod is permitted to move in an advancing direction but not against the advancing direction. - View Dependent Claims (17)
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18. An administering apparatus with a dosage display, comprising:
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a) a casing comprising a front casing section and a rear casing section, and a reservoir for a fluid product, wherein the front casing section and the rear casing section are non-releaseably connected to each other along a common central longitudinal axis, and cannot be moved relative to each other, either axially along or rotationally about the longitudinal axis; b) a driven device which acts on said product contained in said reservoir, in order to deliver product; c) a dosing means, using which a product dosage to be delivered can be selected, and which comprises a dosage scale with a number of dosage marks axially spaced out from each other; and d) a drive device coupled to said driven device for driving the driven device, said drive device performing a delivery stroke from an initial position, in a drive direction, up to a delivery stopper, the length of said delivery stroke counter to the drive direction being limited by selecting the product dosage by means of said dosing means; e) wherein said casing is transparent, at least in an area overlapping said dosage scale; f) wherein the drive device carries an indicator marking, in order to indicate the initial position of the drive device through the transparent area of the casing, relative to said dosage marks; g) wherein the dosing means comprises a dosing member which performs a dosing movement relative to the casing, in order to select the product dosage to be delivered, and wherein the position of said dosing member is displayed on the dosage scale or on another dosage scale; h) the dosing member and the casing are coupled via a swivel joint, such that a rotational movement of the dosing member about a rotational axis pointing in the drive direction causes an axial translational movement of the dosing member; i) the driven device comprises a piston and a piston rod acting on the piston in the drive direction to deliver product from the reservoir by axially moving the piston in the drive direction, the drive device moveable counter to the drive direction to an adjustable dosing stopper, and the piston rod is prevented from moving counter to the drive direction and is coupled to the drive device such that it is slaved by the drive device in the drive direction; and
whereinj) an outer surface of the piston rod comprises rows of teeth, the rear casing section comprising blocking elements which engage the rows of teeth such that the piston rod is permitted to move in an advancing direction but not counter to the advancing direction.
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19. An administering apparatus with a dosage display, comprising:
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a) a casing comprising a front casing section and a rear casing section, and a reservoir for a fluid product, wherein the front casing section and the rear casing section are plugged into each other along a common central longitudinal axis in a non-releasable connection, whereby the front casing section and the rear casing section cannot be moved relative to each other, either axially along or rotationally about the longitudinal axis; b) a driven device which acts on said product contained in said reservoir, in order to deliver product; c) a dosing means, using which a product dosage to be delivered can be selected, and which comprises a dosage scale with a number of dosage marks axially spaced out from each other; and d) a drive device coupled to said driven device for driving the driven device, said drive device performing a delivery stroke from an initial position, in a drive direction, up to a delivery stopper, the length of said delivery stroke counter to the drive direction being limited by selecting the product dosage by means of said dosing means; e) wherein said casing is transparent, at least in an area overlapping said dosage scale; f) wherein the drive device carries an indicator marking, in order to indicate the initial position of the drive device through the transparent area of the casing, relative to said dosage marks; g) the dosing means comprises a dosing member comprising an inner dosing body and an outer dosing body, between which a gap is formed into which the casing protrudes, wherein said inner dosing body forms a dosing stopper for selecting the product dosage, wherein said dosing stopper can be adjusted in or counter to the drive direction by operating said outer dosing body; h) the driven device comprises a piston and a piston rod acting on the piston in the drive direction to deliver product from the reservoir by axially moving the piston in the drive direction, the drive device moveable counter to the drive direction up to an adjustable dosing stopper, and the piston rod prevented from moving counter to the drive direction and slaved to the drive device in the drive direction; and
whereini) an outer surface of the piston rod comprises rows of teeth and the rear casing section comprises blocking elements which engage the rows of teeth whereby the piston rod is moveable in an advancing direction but not counter to the advancing direction. - View Dependent Claims (20, 21, 22, 23)
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24. An administering apparatus with a dosage display, comprising:
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a) a casing comprising a front casing section and a rear casing section, and a reservoir for a fluid product, wherein the front casing section and the rear casing section are non-releaseably connected along a common central longitudinal axis and cannot be moved relative to each other axially along or rotationally about the longitudinal axis; b) a driven device which acts on said product contained in said reservoir, in order to deliver product; c) a dosing means, using which a product dosage to be delivered can be selected, and which comprises a dosage scale with a number of dosage marks axially spaced out from each other; and d) a drive device coupled to said driven device for driving the driven device, said drive device performing a delivery stroke from an initial position, in a drive direction, up to a delivery stopper, the length of said delivery stroke counter to the drive direction being limited by selecting the product dosage by means of said dosing means; e) wherein said casing is transparent, at least in an area overlapping said dosage scale; f) wherein the drive device carries an indicator marking, in order to indicate the initial position of the drive device through the transparent area of the casing, relative to said dosage marks; g) the dosing means comprises a dosing member which forms a dosing stopper, can be moved counter to the drive direction up to the drive device, and is movably coupled to the casing, in order to select the product dosage by adjusting said dosing stopper relative to the casing; h) the driven device comprises a piston and a piston rod acting on the piston in the drive direction to deliver product from the reservoir by axially moving the piston in the drive direction, the drive device moveable counter to the drive direction to an adjustable dosing stopper, and the piston rod is prevented from moving counter to the drive direction and is coupled to the drive device such that it is slaved by the drive device in the drive direction; and
whereini) an outer surface of the piston rod comprises rows of teeth, and the rear casing section comprises blocking elements which engage the rows of teeth such that the piston rod is permitted to move in an advancing direction but not counter to the advancing direction. - View Dependent Claims (25, 26, 27)
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Specification