Magnetic signature imprinting system

Patent metadata

Field	Value
Publication number	US-12444528-B2
Application number	US-202217956651-A
Country	US
Kind code	B2
Filing date	Sep 29, 2022
Priority date	Sep 30, 2021
Publication date	Oct 14, 2025
Grant date	Oct 14, 2025

Abstract

Disclosed herein is a magnetic signature imprinting system including an imprinting device and a medical device having ferrous elements. The imprinting device includes an active area configured to receive the medical device. The active area includes one or more electromagnets configured to generate one or more electromagnetic fields to imprint a magnetic signature. The imprinting device further includes one or more sensors or a user input mechanism configured to detect one or more characteristics of the medical device and a console in communication with each of the electromagnets and the sensors.

First claim

What is claimed is:

1. A magnetic signature imprinting system, comprising:
an imprinting apparatus configured to operatively engage a medical device, the imprinting apparatus comprising:
a frame;
a device engagement mechanism coupled with the frame, the device engagement mechanism configured to receive and position the medical device within an imprinting space of the frame, the medical device including one of a needle, a stylet, a guidewire, an obturator, a probe, a tunneller, a stent, a port, a balloon device, or a sheath; and
a number of electromagnets disposed within the imprinting space; and

a console coupled with the number of electromagnets, the console having a number of processors and a non-transitory computer-readable medium having logic stored thereon that, when executed by the number of processors, performs operations that include selectively activating one or more of the number of electromagnets to imprint a defined magnetic signature on the medical device to define an imprinted magnetic signature that includes a series of dipoles disposed along the medical device.

2. The system according to claim 1 , wherein at least one dipole includes a first length and at least one other dipole includes a second length different from the first length.

3. The system according to claim 1 , wherein at least one dipole includes a first orientation and at least one other dipole includes a second orientation rotated 180 degrees from the first orientation.

4. The system according to claim 1 , wherein a first spacing between a first pair of adjacent dipoles is different from a second spacing between a second pair of adjacent dipoles.

5. The system according to claim 1 , wherein the imprinted magnetic signature includes one or more multipoles disposed along the medical device.

6. The system according to claim 1 , further comprising a number of identification sensors coupled with the console, the number of identification sensors configured to provide at least one of data or electrical signals associated with one or more characteristics of the medical device, wherein the operations further include:
receiving the at least one of data or electrical signals from the number of identification sensors;
determining an identity of the medical device based on the at least one of data or electrical signals; and
establishing the defined magnetic signature based on the identity.

7. The system according to claim 6 , wherein:
the number of identification sensors includes a radio frequency identification (RFID) reader; and
the operations further include receiving RFID data from an RFID tag associated with the medical device, the RFID data including the identity.

8. The system according to claim 6 , wherein:
the number of identification sensors includes a barcode reader; and
the operations further include obtaining barcode data from a barcode associated with the medical device, the barcode data including the identity.

9. The system according to claim 6 , wherein:
the number of identification sensors includes one or more first sensors configured to provide the at least one of data or electrical signals based on a number of physical characteristics of the medical device; and
the operations further include determining the identity based on the number of physical characteristics.

10. The system according to claim 9 , wherein the number of physical characteristics include one or more of a physical dimension or a shape of the medical device.

11. The system according to claim 10 , wherein the physical dimension includes at least one of a length or a diameter of the medical device.

12. The system according to claim 9 , wherein the one or more first sensors include at least one of an inductive sensor, an impedance sensor, a capacitive sensor, or an optical sensor.

13. The system according to claim 1 , further comprising a number of magnetometers coupled with the console, the number of magnetometers configured to detect a magnetic field generated by the imprinted magnetic signature on the medical device,
wherein the operations further include:
receiving electrical signals from the number of magnetometers based on the magnetic field generated by the imprinted magnetic signature;
determining the imprinted magnetic signature on the medical device from the electrical signals from the number of magnetometers;
comparing the imprinted magnetic signature with the defined magnetic signature to verify that the imprinted magnetic signature matches the defined magnetic signature; and
providing an alert to an operator in response to the comparing of the imprinted magnetic signature with the defined magnetic signature.

14. The system according to claim 1 , wherein:
activating one or more of the number of electromagnets includes activating a pair of electromagnets that are separated by an electromagnet spacing; and
the electromagnet spacing defines a spacing between adjacent dipoles of the imprinted magnetic signature.

15. The system according to claim 1 , wherein:
activating one or more of the number of electromagnets includes:
activating a first pair of electromagnets separated by a first electromagnet spacing, the first electromagnet spacing defining a first spacing between adjacent dipoles; and
activating a second pair of electromagnets separated by a second electromagnet spacing, the second electromagnet spacing defining a second spacing between adjacent dipoles, the second spacing between adjacent dipoles being different from the first spacing between adjacent dipoles.

16. The system according to claim 1 , wherein:
the number of electromagnets includes a first electromagnet having a first electromagnet length and second electromagnet having a second electromagnet length different from the first electromagnet length, and
activating one or more of the number of electromagnets includes:
activating the first electromagnet to imprint a first dipole having a first dipole length; and
activating the second electromagnet to imprint a second dipole having a second dipole length, wherein the second dipole length is different from the first dipole length.

17. The system according to claim 1 , wherein:
the console includes a power converter configured to supply power to the number of electromagnets in a first polarity and in a second polarity opposite the first polarity, and activating one or more of the number of electromagnets includes:
supplying power to one electromagnet in the first polarity to imprint a first dipole having a first orientation; and
supplying power to the one electromagnet in the second polarity to imprint a second dipole having a second orientation opposite the first orientation.

18. The system according to claim 1 , wherein:
the device engagement mechanism is configured to displace the medical device along the imprinting space, and activating one or more of the number of electromagnets includes:
activating a first subset of electromagnets;
displacing the medical device from a first position within the imprinting space to a second position within the imprinting space; and
activating a second subset of electromagnets.

19. The system according to claim 18 , wherein:
the imprinting apparatus includes a number of position sensors configured to determine a longitudinal position of the medical device within the imprinting space, and the operations further include at least one of notifying an operator regarding the longitudinal position of the medical device or adjusting a position of the medical device via the device e

Assignees

• Bard Access Systems Inc

Inventors

• Sowards Steffan
• Mclaughlin William Robert
• Misener Anthony K

Classifications

• A61B2090/3954

  magnetic, e.g. NMR or MRI · CPC title

• A61B90/39

  Markers, e.g. radio-opaque or breast lesions markers · CPC title

• H01F13/003

  Methods and devices for magnetising permanent magnets (permanent magnets H01F7/02) · CPC title

• A61B90/90

  Identification means for patients or instruments, e.g. tags · CPC title

• H01F13/00 Primary

  Apparatus or processes for magnetising or demagnetising ({devices for holding workpieces using magnetic or electric force acting directly on the workpieces B23Q3/15} ; for degaussing ships B63G9/06; for clocks or watches G04D9/00; {recording or erasing of information on magnetic record carriers G11B5/00} ; demagnetising arrangements for colour television H04N9/29) · CPC title