SPRING FORCE ASSEMBLY FOR BIASING OR ACTUATING STOPPERS OF SYRINGES, INJECTION PEN CARTRIDGES AND THE LIKE
First Claim
Patent Images
1. A spring force assembly for biasing a displaceable stopper of a liquid medicament cartridge, comprising a spring element arranged along a longitudinal axis, comprising:
- a first brace element arranged on one longitudinal end of the spring element;
a second brace element arranged on the other longitudinal end of the spring element;
a first coupling element attached to the first brace element and aligned to the longitudinal axis; and
a second coupling element attached to the second brace element and aligned to the longitudinal axis; and
wherein the first coupling element and the second coupling element are operationally coupled to each other in such a way that they restrict the distance between the first brace element and the second brace element to a certain maximum value, thereby also restricting the possible expansion of the spring element.
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Abstract
A spring force assembly for biasing a displaceable stopper of a liquid medicament cartridge including a spring element arranged along a longitudinal axis, with brace elements and coupling elements, with the coupling elements restricting the distance between the brace elements which also restricts the possible expansion of the spring element.
50 Citations
19 Claims
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1. A spring force assembly for biasing a displaceable stopper of a liquid medicament cartridge, comprising a spring element arranged along a longitudinal axis, comprising:
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a first brace element arranged on one longitudinal end of the spring element; a second brace element arranged on the other longitudinal end of the spring element; a first coupling element attached to the first brace element and aligned to the longitudinal axis; and a second coupling element attached to the second brace element and aligned to the longitudinal axis; and wherein the first coupling element and the second coupling element are operationally coupled to each other in such a way that they restrict the distance between the first brace element and the second brace element to a certain maximum value, thereby also restricting the possible expansion of the spring element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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- 13. An infusion pump device, comprising a spring force unit for biasing a displaceable stopper of a liquid medicine cartridge.
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18. A method for biasing a displaceable stopper of a liquid container or a syringe comprising:
- providing;
a spring force assembly comprising; a spring element arranged along a longitudinal axis, comprising; a first brace element arranged on one longitudinal end of the spring element; a second brace element arranged on the other longitudinal end of the spring element; a first coupling element attached to the first brace element and aligned to the longitudinal axis; and a second coupling element attached to the second brace element and aligned to the longitudinal axis; and wherein the first coupling element and the second coupling element are operationally coupled to each other in such a way that they restrict the distance between the first brace element and the second brace element to a certain maximum value, thereby also restricting the possible expansion of the spring element; and biasing the displaceable stopper of the liquid container or the syringe with the spring force assembly. - View Dependent Claims (19)
- providing;
Specification