JPWO2019236600A5

JPWO2019236600A5 -

Info

Publication number: JPWO2019236600A5
Application number: JP2020567959A
Authority: JP
Publication date: 2022-06-13

Claims

a) Tags and
b) A remote activation device that generates a magnetic field in the region of the tag so that the magnetic field generated by the remote activation device can be substantially selectively generated in the X direction and the Y direction. The remote activation device comprises four or more exciter coils each configured to carry an electric current in a clockwise or counterclockwise direction.
c) Multiple sensors configured to detect signals from the tag while the tag is exposed to the magnetic field.
Including the system.

The four or more exciter coils are connected in series and
Preferably, the four exciter coils are in a two-row layout centered on coordinates (X1, Y1), (X1, Y2), (X2, Y1), and (X2, Y2).
More preferably, the remote activation device is
a) All clockwise currents to simulate an exciter coil that is aligned or substantially aligned with a plane perpendicular to the Z axis.
b) Exciter coils centered on (X2, Y1), (X2, Y2), where current is passed counterclockwise to simulate an exciter coil that is aligned or substantially aligned on the X axis.
c) Exciter coils centered on (X1, Y2), (X2, Y2), where current is passed counterclockwise to simulate an exciter coil that is aligned or substantially aligned on the Y axis.
The system according to claim 1, wherein the system has a configuration of three current flows.

The remote activator comprises a plurality of relays, at least one PIN diode, or field effect transistor that provides a switching function to maintain the excitation frequency.
Preferably, the switching function inserts an additional series capacitive reactance through the capacitive element as the total inductance increases so that the tuned center frequency is maintained at the excitation frequency.
More preferably, the system according to claim 1, wherein the capacitance element is composed of a plurality of capacitors.

i) The remote activator further comprises a balun in close proximity to the exciter coil;
ii) The magnetic field generated by the remote activation device can be substantially more selectively generated in the Z direction;
iii) The system further includes an amplifier that electronically communicates with the remote activator;
iv) Contains multiple tags;
v) Further include a computer that controls magnetic field generation and sensor detection, preferably said computer including a hunting algorithm that adjusts the magnetic field orientation to identify the optimal detection of one or more tags;
vi) The tag includes an antenna and optionally includes a housing around the tag antenna, which emits a sideband at a predetermined frequency when activated by a magnetic field, preferably the tag antenna. Includes a coil antenna, more preferably
The coil antenna includes a ferrite core coil antenna.
The coil antenna resonates at 100 to 200 kHz.
The coil antenna is defined by one of three points: the coil antenna is coupled to an integrated circuit;
vii) Including medical devices:
The system according to claim 1, further defined by one of i) to vi).

At least one of the plurality of sensors includes a surveillance station assembly, which is a monitoring station assembly.
a) A monitoring coil
i) A coilless proximal end, a coilless distal end, and a metal core with a central region, and
ii) A coil winding, which is wound around the central region of the metal core.
With the monitoring coil, including
b) The first monitoring coil bracket and the second monitoring coil bracket,
c) First elastomer parts and second elastomer parts,
Equipped with
The coilless proximal end of the metal core is secured between the first monitoring coil bracket and the first elastomer component.
The system of claim 1, wherein the coilless distal end of the metal core is secured between the second monitoring coil bracket and the second elastomeric component.

(1) The first monitoring coil bracket and the second monitoring coil bracket each include at least one adjusting component, preferably the at least one adjusting component is at least one screw and / or at least one rod. including;
(2) The monitoring station assembly further comprises an electronic component that is electrically linked to the monitoring coil, preferably the electronic component comprises at least one capacitor and / or at least one balun circuit. / Alternatively, preferably, the electronic component includes a printed circuit board;
(3) The surveillance station assembly further includes a Faraday shield;
(4) The surveillance station assembly further includes electronic components electrically linked to the surveillance coil, and a Faraday shield;
(5) The first elastomer component and the second elastomer component include a material selected from an elastomer polymer and a spring;
(6) The metal core includes a ferrite core;
(7) The metal core has a diameter of 8 to 16 mm;
(8) The metal core has a length of 20 to 60 mm;
(9) The coil winding comprises a metal wire, preferably the metal wire is wound 150-300 times around the metal core;
(10) The first monitoring coil bracket and the second monitoring coil bracket are configured to fit the wireless proximal end and / or the wireless distal end of the metal core, respectively. Including notches to be:
The system or apparatus according to claim 5, further defined in one of (1) to (10).

a) Using the remote activation device of the system according to any one of claims 1 to 6 to generate an excitation magnetic field, and
b) Detecting a signal from the tag using the plurality of sensors,
Including, how.

The excitation magnetic field is generated in one of the plane in the X direction or the plane in the Y direction.
The method of claim 7, wherein the sensor detects the signal of the tag in a plane substantially orthogonal to the one of the X and Y directions.

Use of the system according to any one of claims 1-5.

Use of the system according to any one of claims 1 to 5, for detecting the position of a tag in an object.

Use of the system of any of claims 1-5 for detecting the position of a tag with respect to a medical device.

A system or device comprising an exciter assembly that circulates between at least a first magnetic field, a second magnetic field, and a third magnetic field that is generated to generate a signal in the tag.
a) Base board and
b) A first exciter coil attached to the base substrate, the current in the first exciter coil is transmitted clockwise when the first magnetic field, the second magnetic field, and the third magnetic field are generated. , The first exciter coil and
c) In the second exciter coil attached to the base substrate, the current in the second exciter coil is transmitted clockwise when the first magnetic field and the second magnetic field are generated, and the third magnetic field is generated. The second exciter coil, which is transmitted counterclockwise when it occurs,
d) In the third exciter coil attached to the base substrate, the current in the third exciter coil is transmitted clockwise when the first magnetic field and the third magnetic field are generated, and the second magnetic field is generated. The third exciter coil, which is transmitted counterclockwise when it occurs,
e) In the fourth exciter coil attached to the base substrate, the current in the fourth exciter coil is transmitted clockwise when the first magnetic field is generated, and the second magnetic field and the third magnetic field are generated. The system or device comprising said fourth exciter coil, which propagates counterclockwise when it occurs.

i) Each of the second exciter coil, the third exciter coil, and the fourth exciter coil is operably connected to a switch that controls the direction of the current passing through the exciter coil, preferably each switch. Each exciter coil comprises a relay element, a PIN diode, or an electric field effect transistor, and / or each exciter coil comprises at least 50 turns and / or consists of litz wire, or preferably further comprises a plurality of capacitors. Each switch is connected to at least two of the capacitors;
ii) The system or apparatus further comprises a plurality of monitoring coils mounted on the substrate and configured to detect the signal from the tag, preferably the plurality of monitoring coils are twelve monitoring coils. Or the plurality of monitoring coils are located on opposite sides of the base substrate but not adjacent to the opposite sides and / or on the x-axis and y-axis with respect to the other monitoring coils. Positioned alternately in opposite orientations along, the system or device further comprises a plurality of printed circuit boards, each of the plurality of monitoring coils operably linked to one of the plurality of circuit boards. And more preferably, each circuit board comprises at least two capacitors and at least one balun circuit;
iii) Further includes the above tags;
iv) Further includes, preferably, a balun circuit electrically linked to the first exciter coil, the second exciter coil, the third exciter coil, and the fourth exciter coil, preferably to the balun circuit. A plurality of monitoring coils attached to the substrate and configured to detect the signal from the tag are further included, and the plurality of monitoring coils are electrically connected to the cable bundle. Linked to;
v) Further include the surveillance station assembly according to claims 5-6;
vi) A top cover is further included, and the top cover is fitted to the base substrate, in which the first exciter coil, the second exciter coil, the third exciter coil, and the fourth exciter coil are enclosed. ;
vii) Further includes a system electronic device housing configured to provide a signal to the first exciter coil, the second exciter coil, the third exciter coil, and the fourth exciter coil;
viii) The centers of the first exciter coil, the second exciter coil, the third exciter coil, and the fourth exciter coil are separated from each other by at least 7 cm;
ix) The fourth exciter coil is positioned next to the second exciter coil, and the third exciter coil is positioned diagonally from the second exciter coil next to the first exciter coil:
12. The system or apparatus according to claim 12, further defined in one of i) to ix).

a) Base board and
b) A first exciter coil, a second exciter coil, a third exciter coil, and a fourth exciter coil, which are attached to the substrate and configured to generate a magnetic field for the tag to generate a signal.
c) A balun circuit electrically linked to the first exciter coil, the second exciter coil, the third exciter coil, and the fourth exciter coil.
Including the system or equipment.

i) Each of the second exciter coil, the third exciter coil, and the fourth exciter coil is operably connected to a switch that controls the direction of the current passing through the exciter coil, preferably each switch. Each switch comprises a relay element or PIN diode, or an electric field effect transistor, and / or each exciter coil comprises at least 50 turns and / or consists of litz wire or further comprises multiple capacitors. Linked to at least two of the capacitors;
ii) Further include a plurality of monitoring coils mounted on the substrate and configured to detect the signal from the tag, preferably the plurality of monitoring coils include or contain twelve monitoring coils. , The plurality of monitoring coils are arranged on the opposite side of the base substrate, but are not adjacent to the opposite side and / or are alternately opposed to other monitoring coils along the x-axis and the y-axis. Each is positioned in the orientation of;
iii) Further comprising a plurality of printed circuit boards, each of the plurality of monitoring coils being operably linked to one of the plurality of circuit boards, preferably each circuit board having at least two capacitors. And at least one balun circuit;
iv) Further include the surveillance station assembly according to claims 5-6:
The system or apparatus according to claim 14, which is defined in one of i) to iv).