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Publication Number
US-11160930-B2
Publication Date
2021-11-02
Expiration Date
Abstract
A medication device with a cartridge or a syringe having a longitudinal axis and containing a medicament, a housing receiving the cartridge or the syringe and having a center axis, and with an RFID device comprising at least one RFID chip with a first antenna, at least one RFID readout unit with a second antenna, wherein the at least one RFID chip is associated with the cartridge or the syringe or the housing and the at least one RFID readout unit is associated accordingly with the housing or the cartridge or the syringe. The first antenna of the at least one RFID chip and the second antenna of the at least one RFID readout unit are each embodied as a coil and aligned so as to be coaxial with one another and with the longitudinal axis as well as with the center axis.
Core Innovation
A medication device is described that includes a cartridge or a syringe having a longitudinal axis and containing a medicament, and a housing receiving the cartridge or the syringe and having a center axis. An RFID device is provided with at least one RFID chip and at least one RFID readout unit, where the RFID chip is associated with one of the cartridge or the syringe and the housing and the RFID readout unit is associated with the other.
The RFID chip and readout unit each include an antenna embodied as a coil that independently extends completely around the longitudinal axis or the center axis. The first antenna and the second antenna are aligned so as to be coaxial with one another and with the longitudinal axis as well as with the center axis, and this coaxial alignment of coil antennas is stated to improve signal transmission regardless of rotational position.
A shrinkable sleeve is used to mount at least one of the first antenna and the second antenna on an outer surface of the selected object consisting of the cartridge or the syringe or the housing. The shrinkable sleeve rests firmly against the outer surface of the object, and at least one antenna is integrated into a wall of one of the syringe, the cartridge, a shrinkable sleeve, and the housing.
RFID information about the medicament and a route of administration is conveyed. The described coil antenna geometries include annular/closed ring, ring segment, spiral, and helical antenna forms, and embodiments are described for pen-type cartridges and syringe configurations.
Claims Coverage
The partial claims include three independent claims. Across these independent claims, the main inventive features are the coaxially aligned coil antennas around the longitudinal/center axes, the shrinkable-sleeve mounting that rests firmly against an outer surface, and an assembly method using a shrinkable sleeve with a first and second diameter via a stimulus.
Coaxial coil antennas around longitudinal and center axes
An RFID device in which a first antenna and a second antenna are each embodied as a coil independently extending completely around the longitudinal axis or the center axis and aligned so as to be coaxial with one another and with the longitudinal axis as well as with the center axis.
Shrinkable sleeve mounting resting firmly against an outer surface
A shrinkable sleeve mounting at least one of the first antenna and the second antenna on an outer surface of an object selected from the group consisting of: the cartridge or the syringe; and the housing, wherein the shrinkable sleeve rests firmly against the outer surface of the object.
Antenna integrated into a wall
At least one of the first antenna and the second antenna is integrated into a wall of one of the syringe, the cartridge, a shrinkable sleeve, and the housing.
Assembling using shrinkable sleeve from first diameter to second diameter
Placing a shrinkable sleeve around an object selected from the group consisting of: (1) the cartridge or the syringe; and (2) the housing when the shrinkable sleeve has a first diameter; and applying a stimulus to the shrinkable sleeve to reduce the shrinkable sleeve to a second diameter, the second diameter being smaller than the first diameter, such that the shrinkable sleeve rests firmly on an outer surface of the object and mounts at least one of the first antenna and the second antenna to the object.
The independent claims require an RFID device with first and second coil antennas extending completely around the longitudinal/center axes and aligned coaxially, combined with either a shrinkable sleeve mounting that rests firmly against an outer surface, an antenna integrated into a wall, and (for the method claim) an assembly process in which a shrinkable sleeve is reduced from a first diameter to a smaller second diameter by applying a stimulus to mount the antenna(s).
Stated Advantages
Improves signal transmission irrespective of rotational position.
Documented Applications
RFID can convey information about the medicament and the route of administration.
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