Device for administering a fluid product comprising optical scanning
First Claim
1. A device for administering a fluid product, comprising a measuring means for measuring, without contact, a position between at least two elements of the administering device which can be moved relative to each other, wherein the measuring means comprising:
- at least two optical sensors which are arranged fixed with respect to each other on at least a first element and opposite a second element which can be moved relative to the first element; and
a surface profile on the second element, which provides a different predetermined profile trajectory, which can be measured by the sensors, for each of the optical sensors when the at least first element and the second element are moved relative to each other.
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Accused Products
Abstract
A device for administering a substance including a measuring mechanism for measuring, without contact, a position, the measuring involving at least two elements of the device, at least one of the elements moveable with respect to the other, the measuring mechanism including at least two optical sensors for sensing a relative movement between the elements, the relative movement providing a profile trajectory. The present invention encompasses a method for measuring, without contact, a relative position between elements or structures which can be moved relative to each other, wherein sensors sense and/or record a profile trajectory associated with the elements or structures when one element is moved relative to another element, the trajectory processed to determine the position.
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Citations
34 Claims
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1. A device for administering a fluid product, comprising a measuring means for measuring, without contact, a position between at least two elements of the administering device which can be moved relative to each other, wherein the measuring means comprising:
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at least two optical sensors which are arranged fixed with respect to each other on at least a first element and opposite a second element which can be moved relative to the first element; and
a surface profile on the second element, which provides a different predetermined profile trajectory, which can be measured by the sensors, for each of the optical sensors when the at least first element and the second element are moved relative to each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for measuring, without contact, a position between elements of a device which can be moved relative to each other, said device for administering a fluid product and comprising at least two optical sensors fixed with respect to each other and arranged on at least a first element and opposed to a surface profile on a second element which can be moved with respect to the first element, wherein:
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each of the optical sensors records a different predetermined profile trajectory of the surface profile when the at least first element is moved relative to the second element along the surface profile;
the profile trajectories recorded by each of the sensors are processed together, in order to determine a path distance travelled during movement; and
the path distance travelled is correlated with a reference position in order to ascertain the position of the first element and the second element with respect to each other. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25)
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26. A device for administering a fluid product, comprising a measuring means for measuring, without contact, a position between at least two elements of the administering device which can be moved relative to each other, wherein:
the measuring means comprises an optical sensor on a first element, said optical sensor the first element and the second element can be moved in the radial direction with respect to the longitudinal axis of the administering device, such that the distance between the first element and the second element changes when the elements are moved relative to each other. - View Dependent Claims (27, 28, 29, 30)
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31. A device for delivering a substance comprising:
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a first element moveable during operation of the device and a second element; and
an optical sensor for sensing a relative movement between the elements, the relative movement providing a profile trajectory indicative of a condition associated with the device.
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32. A method for measuring, without contact, a relative position between elements of a device which can be moved relative to each other, the method comprising the steps of:
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sensing a relative movement between the elements;
calculating a profile trajectory stemming from the relative movement; and
using the profile trajectory to determine a condition of the device. - View Dependent Claims (33)
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34. A device for administering a fluid product, comprising at least two elements at least one of which is moveable with respect to the other and a measuring means for measuring, without contact, a relative position of the at least two elements, the measuring means comprising:
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at least two optical sensors which are arranged with respect to each other and a first element and a second element which can be moved relative to the first element; and
a different surface profile associated with each of said at least two elements, which, when at least one of the elements is moved relative to the other, provides a different predetermined profile trajectory, which can be sensed by the optical sensors.
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Specification