Senseonics has filed a patent for a method and apparatus to locate an implant with magnetic material in a living animal. The apparatus includes a magnetic field generator, a sensor to detect changes in the magnetic field caused by the implant, and a computer to determine the location of the implant using the sensor signal. GlobalData’s report on Senseonics gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Senseonics, Medical data analysis was a key innovation area identified from patents. Senseonics's grant share as of September 2023 was 40%. Grant share is based on the ratio of number of grants to total number of patents.

Implant location detection apparatus using magnetic field and sensor

Source: United States Patent and Trademark Office (USPTO). Credit: Senseonics Holdings Inc

A recently filed patent (Publication Number: US20230309852A1) describes an apparatus and method for locating an implant containing magnetic material or charge storage device in a living animal. The apparatus includes a magnetic field generator, a sensor, and a computer. The magnetic field generator generates a magnetic field, and the sensor detects changes in the magnetic field as it is moved over the implant. The sensor signal indicative of the changes in the magnetic field is then used by the computer to detect the location of the implant.

The magnetic field generator can be a cylindrical magnet, which may be hollow, or it can consist of two or more magnets held in a housing. The magnetic field generated by the magnetic field generator can be either a substantially uniform magnetic field or a non-uniform and/or asymmetric magnetic field. The sensor is located along or offset from the longitudinal axis at the center of the magnetic field generator.

In detecting the location of the implant, the computer can determine the edges of the magnetic material of the implant based on the locations of bimodal peaks in the changes in the magnetic field during the movement of the sensor along the longitudinal axis of the implant. The computer can also determine the depth and orientation of the implant based on the magnitude and difference in magnitudes of the changes in the magnetic field at the bimodal peaks.

The apparatus may include a display that shows an indication of the detected location of the implant, which can be represented by an implant image on the screen. The computer can also calculate a derivative of the changes in the magnetic field and use it to detect the location of the implant, determining the edges of the magnetic material based on locations where the derivative equals zero.

The method for locating the implant involves using the magnetic field generator and sensor to detect changes in the magnetic field or electromagnetic field, and using the computer to detect the location of the implant based on the sensor signal. The method includes determining the midline of the implant and moving the apparatus along the midline to determine the edges of the magnetic material or charge storage device based on the locations of bimodal peaks in the changes in the magnetic field or electromagnetic field.

Overall, this patent describes an apparatus and method that can accurately locate implants containing magnetic material or charge storage devices in living animals, providing valuable information for medical procedures involving the removal or manipulation of such implants.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies