Implantable medical device with a non-traumatic helical anchoring screw
US11951304B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2022 |
| Grant date | Apr 9, 2024 |
| Priority date | — |
| Expiry date | Dec 14, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/3756
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The device, such as an autonomous cardiac implant of the leadless capsule type, has a device body with a means for its anchoring to a patient's organ wall. The anchoring means includes a screw with a helix wire wound into a plurality of non-contiguous turns, the screw having a clamped end integral with the front face of the device body and a free end with a beveled end defined by at least one oblique surface. The normal to the oblique surface of the beveled end is directed away from the front face, in such a way that the oblique surface is directed towards the patient's organ wall. The normal to the oblique surface forms an angle between 30° and 60° with respect to the helix axis, and the screw is elastically deformable in axial compression, with a stiffness coefficient of at most 5 N/mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.