Syringe with finger flange
First Claim
Patent Images
1. A syringe comprising:
- a cylindrical syringe body having a distal end, a proximal end, and a cylindrical chamber for uptake of a liquid substance, the proximal end having an opening and at least one protruding or ring-shaped projection, the at least one projection protruding radially outward over a circumferential surface of the syringe body; and
a finger flange having at least one support surface for a finger, the finger flange being designed in one piece and comprising a first finger flange element and a second finger flange element, the first and second finger flange elements being movably connected to one another between an open position and a closed position,wherein, when in the closed position, the finger flange is connected in a friction-fit at least partially to the at least one projection and surrounds the at least one projection so that an axial displacement of the finger flange relative to the syringe body is prevented,wherein the first finger flange element has a recess configured to receive the proximal end of the syringe body into the recess by radial displacement,wherein the second finger flange element has a central passage opening configured to define a plunger guiding recess,wherein the first and the second finger flange elements are joined together for movement between the open position and the closed position by rotation about an axis that is perpendicular to a center line of the syringe body,wherein the first and the second finger flange elements are disposed in offset parallel planes when in the closed position, the offset parallel planes being perpendicular to the center line of the syringe body,wherein the first and the second finger flange elements, when in the open position, are configured to be positioned on the syringe body without axial displacement,wherein the first and second finger flange elements, when in the closed position, are locked together to prevent opening, andwherein the finger flange prevents a plunger and/or a stopper connected to the plunger from being pulled out.
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Accused Products
Abstract
A syringe having a finger flange and a finger support is provided. The finger flange includes a radially projecting support surface for a finger and is joined to the syringe body of the syringe at its proximal end. In this case, the finger flange is further designed in one piece and includes at least two finger flange elements, which are movably joined with one another.
14 Citations
21 Claims
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1. A syringe comprising:
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a cylindrical syringe body having a distal end, a proximal end, and a cylindrical chamber for uptake of a liquid substance, the proximal end having an opening and at least one protruding or ring-shaped projection, the at least one projection protruding radially outward over a circumferential surface of the syringe body; and a finger flange having at least one support surface for a finger, the finger flange being designed in one piece and comprising a first finger flange element and a second finger flange element, the first and second finger flange elements being movably connected to one another between an open position and a closed position, wherein, when in the closed position, the finger flange is connected in a friction-fit at least partially to the at least one projection and surrounds the at least one projection so that an axial displacement of the finger flange relative to the syringe body is prevented, wherein the first finger flange element has a recess configured to receive the proximal end of the syringe body into the recess by radial displacement, wherein the second finger flange element has a central passage opening configured to define a plunger guiding recess, wherein the first and the second finger flange elements are joined together for movement between the open position and the closed position by rotation about an axis that is perpendicular to a center line of the syringe body, wherein the first and the second finger flange elements are disposed in offset parallel planes when in the closed position, the offset parallel planes being perpendicular to the center line of the syringe body, wherein the first and the second finger flange elements, when in the open position, are configured to be positioned on the syringe body without axial displacement, wherein the first and second finger flange elements, when in the closed position, are locked together to prevent opening, and wherein the finger flange prevents a plunger and/or a stopper connected to the plunger from being pulled out. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A finger flange for guiding a plunger that is formed in one piece therethrough, the finger flange comprising:
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at least one first and one second finger flange element are joined together in movable manner by rotation to a closed position by rotation about an axis that is perpendicular to but offset from a center line of a syringe body, wherein the first finger flange element has a recess configured to receive a proximal end of the syringe body into the recess by radial displacement, wherein the first and the second finger flange elements, when in the open position, are configured to be positioned on the syringe body without axial displacement, wherein the second finger flange element has a central passage opening configured to define a plunger guiding recess, wherein the first and second finger flange elements, when in the closed position, are locked together to prevent opening, and wherein the plunger guiding recess is configured so that, when in the closed position, the plunger and/or a stopper connected to a plunger is prevented from being pulled out. - View Dependent Claims (19)
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20. A finger flange for guiding a plunger received in a syringe body, the finger flange comprising:
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a first finger flange element having a recess configured to receive a proximal end of the syringe body into the recess by radial displacement; a second finger flange element having a plunger guiding recess configured to receive a plunger through the plunger guiding recess by axial displacement; and a hinge or joint joining the first and second finger flange elements together for movement between an open position and a closed position by rotation about an axis that is perpendicular to but offset from a center line of the syringe body, wherein the first and the second finger flange elements, when in the open position, are configured to be positioned on the syringe body without axial displacement, wherein the first and second finger flange elements, when in the closed position, are locked together to prevent opening, and wherein the plunger guiding recess is configured so that, when in the closed position, the plunger and/or a stopper connected to a plunger is prevented from being pulled out.
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21. A syringe comprising:
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a cylindrical syringe body having a distal end, a proximal end, and a cylindrical chamber for uptake of a liquid substance, the proximal end having an opening and at least one protruding ring-shaped or annular projection, the at least one projection protruding radially outward over a circumferential surface of the syringe body; and a finger flange having at least one support surface for a finger, the finger flange being designed in one piece and comprising a first finger flange element and a second finger flange element, the first and second finger flange elements being movably connected to one another between an open position and a closed position, wherein, when in the closed position, the finger flange is connected in a friction-fit at least partially to the at least one protruding ring-shaped or annular projection and surrounds the at least one projection so that an axial displacement of the finger flange relative to the syringe body is prevented, and wherein the first finger flange element has a recess configured to receive the proximal end of the syringe body comprising the projection into the recess in form-fitting manner by radial displacement, wherein the second finger flange element has a central passage opening configured to define a plunger guiding recess, wherein the first and the second finger flange elements are joined together for movement between the open position and the closed position by rotation about an axis that is perpendicular to a center line of the syringe body, wherein the first and second finger flange elements, when in the closed position, are locked together to prevent opening wherein the first and the second finger flange elements are disposed in offset parallel planes when in the closed position, the offset parallel planes being perpendicular to the center line of the syringe body, and wherein the finger flange prevents a plunger and/or a stopper connected to the plunger from being pulled out.
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Specification