US 11,832,896 B2
Interventional device with electrical connections
Willem-Jan Arend De Wijs, Oss (NL); Johannes Wilhelmus Weekamp, Beek en Donk (NL); Gerardus Franciscus Cornelis Maria Lijten, Veldhoven (NL); and Egbertus Reinier Jacobs, Overloon (NL)
Assigned to KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
Appl. No. 17/266,152
Filed by KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
PCT Filed Aug. 2, 2019, PCT No. PCT/EP2019/070892
§ 371(c)(1), (2) Date Feb. 5, 2021,
PCT Pub. No. WO2020/030548, PCT Pub. Date Feb. 13, 2020.
Claims priority of provisional application 62/716,134, filed on Aug. 8, 2018.
Claims priority of application No. 18198759 (EP), filed on Oct. 5, 2018.
Prior Publication US 2021/0298841 A1, Sep. 30, 2021
Int. Cl. A61B 34/20 (2016.01); A61B 17/34 (2006.01); A61B 90/00 (2016.01); A61B 8/08 (2006.01)
CPC A61B 34/20 (2016.02) [A61B 8/0841 (2013.01); A61B 17/3403 (2013.01); A61B 2017/3413 (2013.01); A61B 2034/2063 (2016.02); A61B 2034/2065 (2016.02); A61B 2090/3786 (2016.02); A61B 2562/227 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An interventional device comprising:
an electrically conductive elongated shaft having a longitudinal axis; and
a sensor strip wrapped around the electrically conductive elongated shaft in a form of a spiral, the sensor strip comprising a sensor, a first electrical conductor, a second electrical conductor, a first polymer layer, a second polymer layer, a window, and an electrical shield layer that are arranged on the sensor strip to align the first electrical conductor and the second electrical conductor to corresponding contacts of an external mating connector,
wherein the first electrical conductor, the second electrical conductor, and the sensor are disposed between the first polymer layer and the second polymer layer on a first side of the first polymer layer,
wherein the electrical shield layer is disposed on a second side of the first polymer layer and facing outwards from the electrically conductive elongated shaft,
wherein the first electrical conductor and the second electrical conductor are in electrical contact with the sensor and a length of the first electrical conductor and the second electrical conductor extending parallel to a length direction of the sensor strip between (i) a sensor region, at a distal end of the sensor strip, that includes the sensor, and (ii) a proximal end of the window at a proximal end of the sensor strip,
wherein the sensor strip includes the window that extends on the sensor strip along a portion of the length of the first electrical conductor and the second electrical conductor lying between a proximal end of the electrical shield layer and a proximal end of the first electrical conductor and the second electrical conductor, the window corresponding to a portion of the sensor strip with the first polymer layer and the electrical shield layer removed to expose the first electrical conductor and the second electrical conductor,
wherein the electrical shield layer extends on the sensor strip along another portion of the length of the first electrical conductor and the second electrical conductor lying between the sensor region and a distal end of the window, and
wherein the sensor strip includes a sensor interconnection region comprising the electrical shield contact portion adjacent the window, the window, and an exposed portion of the electrically conductive elongated shaft beyond the wrapped sensor strip, and
wherein the electrical shield layer extends on the sensor strip with the proximal end of the electrical shield layer inclined at an acute angle with respect to the length direction of the sensor strip, and the electrical shield layer is disposed on the electrically conductive elongated shaft with the proximal end of the electrical shield layer lying in a plane that is normal to the longitudinal axis of the electrically conductive elongated shaft.
 
9. A system for providing electrical contact to a sensor, the system comprising:
an interventional device with an electrically conductive elongated shaft having a longitudinal axis; and
a sensor strip configured to be wrapped around the electrically conductive elongated shaft in a form of a spiral, the sensor strip comprising the sensor, one or more electrical conductors, a window, and an electrical shield layer that are arranged on the sensor strip, such that when the sensor strip is wrapped around the electrically conductive elongated shaft, a first electrical conductor and a second electrical conductor align to corresponding contacts of an external mating connector,
wherein the one or more electrical conductors are in electrical contact with the sensor and a length of the one or more electrical conductors extend parallel to a length direction of the sensor strip between (i) a sensor region, at a distal end of the sensor strip, that includes the sensor and (ii) a proximal end of the window at a proximal end of the sensor strip,
wherein the sensor strip includes the window that extends on the sensor strip along a portion of the length of the first electrical conductor and the second electrical conductor lying between a proximal end of the electrical shield layer and a proximal end of the first electrical conductor and the second electrical conductor, the window corresponding to a region with the electrical shield layer removed to expose the one or more electrical conductors,
wherein the electrical shield layer extends on the sensor strip along another portion of the length of the first electrical conductor and the second electrical conductor lying between a distal end of the window,
wherein, the sensor strip is configured such that, when the sensor strip is wrapped around the electrically conductive elongated shaft in the form of the spiral with the one or more electrical conductors extending along the longitudinal axis within the window, the window, the electrical shield contact portion, and an exposed portion of the electrically conductive elongated shaft provide a sensor interconnection region configured to provide an electrical contact to the sensor, and
wherein the electrical shield layer extends on the sensor strip with the proximal end of the electrical shield layer inclined at an acute angle with respect to the length direction of the sensor strip, such that when the sensor strip is wrapped around the electrically conductive elongated shaft in the form of the spiral with the distal end positioned nearest the sensor region and the proximal end positioned adjacent the window, the proximal end of the electrical shield layer lies in a plane that is normal to the longitudinal axis of the electrically conductive elongated shaft.