Bipolar Mapping Suction Device Patent Grant

ChangeBridge: Patent Grants - Diagnosis & Surgery (A61B)

Published March 31st, 2026

Detected March 31st, 2026

Summary

The USPTO granted Patent US12588868B2 to Inomed Medizintechnik GmbH for a bipolar mapping suction instrument used in surgery. The device monitors nerve tissue while suctioning fluids and tissue. The patent includes 17 claims covering the instrument's dual-pole electrical system and concentric tube design with insulation between cannulas.

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What changed

The USPTO issued Patent No. US12588868B2 to Inomed Medizintechnik GmbH for a bipolar mapping suction instrument. The invention comprises a cannula unit with electrically conductive inner and outer tubes arranged concentrically, with insulation between them. The inner tube connects to a handpiece and first interface, while both tubes connect to a bipolar electrical connection at a second interface. The device is designed for suctioning fluids and tissue while simultaneously monitoring nerve tissue during surgical procedures.

This is a patent grant announcement with no compliance requirements for third parties. Companies developing similar suction or nerve monitoring devices should review this patent to assess potential freedom-to-operate implications. Medical device manufacturers incorporating bipolar suction capabilities in surgical instruments should evaluate whether their products fall within the scope of these 17 claims.

Source document (simplified)

← USPTO Patent Grants

Bipolar mapping suction device

Grant US12588868B2 Kind: B2 Mar 31, 2026

Assignee

INOMED MEDIZINTECHNIK GMBH

Inventors

Rudi Mattmueller

Abstract

A bipolar mapping suction instrument and a system for suctioning fluids and tissue and for monitoring nerve tissue are provided. The suction instrument includes a cannula unit, including electrically conductive inner and outer cannula tubes and insulation. The electrically conductive inner cannula tube is arranged concentrically in the outer cannula tube which can be insulated from the exterior. The electrically conductive inner cannula tube is mechanically connected to a handpiece and/or a first interface. The electrically conductive inner and outer cannula tubes are respectively electrically connected to first and second poles of a bipolar electrical connection of a second interface. The insulation is concentrically arranged between the outer cannula tube and the inner cannula tube and electrically isolates the outer cannula tube from the inner cannula tube.

CPC Classifications

A61B 5/0059 A61B 5/24 A61B 5/395 A61B 5/6852 A61B 5/4836 A61B 1/015 A61B 5/00 A61N 1/3787 A61N 1/00 A61N 1/18 A61N 1/3603 A61M 25/00 A61M 1/71 A61M 1/74 A61M 1/75 A61M 2205/054 A61M 1/774 A61M 1/80