System and method for monitoring device engagement

摘要

An intravenous ultrasound (IVUS) system can include a catheter and a translation mechanism for translating the catheter. Engagement between the catheter and the translation mechanism may be detected, and the translation mechanism can be placed in a connected or disconnected mode, accordingly. When in connected mode, certain IVUS operations may be enabled when compared to disconnected mode, wherein such operations may be disabled. Thus, some embodiments may ensure proper engagement between the catheter and the translation mechanism prior to allowing certain IVUS operations to be carried out.

主权项

1. A method for operating an intravascular ultrasound (IVUS) system that includes
circuitry, a translation mechanism comprising a patient interface module (PIM) and a linear translation system (LTS), the PIM including a catheter interface and the LTS being configured to translate the PIM between distal and proximal positions and comprising an anchor port separate from the catheter interface, and an IVUS catheter having
a sheath including an anchor assembly positioned near the proximal end of the sheath, the anchor assembly being configured to engage the anchor port of the LTS,a drive cable positioned within the sheath, the drive cable being coupled to an IVUS transducer at a distal end, anda connector located at the proximal end of the drive cable, the connector being separate from the sheath and configured to provide an electrical and mechanical interface between the IVUS catheter and the catheter interface of the translation mechanism, the method comprising: receiving a command to perform an IVUS task comprising translating the PIM between a distal position and a proximal position relative to the anchor port via the LTS in order to cause the drive cable to move between a distal position and a proximal position relative to the sheath; measuring a first output from the circuitry corresponding to engagement between the anchor assembly of the IVUS catheter and the translation mechanism; determining, via the first output, if the anchor assembly of the IVUS catheter is anchored directly to the translation mechanism; placing the translation mechanism in a connected mode if the anchor assembly of the IVUS catheter is anchored to the translation mechanism or in a disconnected mode if the anchor assembly of the IVUS catheter is not anchored to the translation mechanism; and performing the IVUS task if the translation mechanism is in the connected mode but not if the translation mechanism is in the disconnected mode.