MAGNETICALLY DRIVEN ATHERECTOMY SYSTEM

DE602021031210T2Active Publication Date: 2025-05-21BOSTON SCIENTIFIC SCIMED INC
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Patent Information

Application Number
DE602021031210
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Priority Date
2020-10-27
Filing Date
2021-10-26
Publication Date
2025-05-21
Estimated Expiration
2041-10-26

AI Technical Summary

Technical Problem

Current medical devices for atherectomy, which remove occlusive material from blood vessels, face challenges in efficiently and cost-effectively addressing the varied hardness and calcification of atheromatous deposits, particularly due to the need for frequent replacement of components and inadequate fluid sealing, leading to contamination and sterilization issues.

Method used

A magnetically driven atherectomy system comprising a multiple use assembly with a drive motor, controller, and magnetic coupling segments, paired with a single use assembly featuring a spline shaft and drive gear assembly, allowing for high-speed rotation of an atherectomy burr and easy sterilization of the reusable components, while preventing fluid ingress and enabling repeatable, clean connections.

Benefits of technology

The system achieves efficient removal of atheromatous deposits with high-speed burr rotation and cost savings through reusable components, maintaining cleanliness and ease of sterilization, thus addressing the challenges of deposit hardness and calcification.

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Abstract

An atherectomy system includes a multiple use assembly and a single use assembly that is adapted to releasably engage with the multiple use assembly. The multiple use assembly includes a drive motor having an output shaft, a first magnetic coupling segment that is rotatably coupled to the output shaft and a circuit that is adapted to control operation of the drive motor. The single use assembly, intended to be disposable, includes a second magnetic coupling segment that is adapted to rotatably engage the first magnetic coupling segment, a spline shaft that is rotatably coupled with the second magnetic coupling segment, a drive gear assembly that is translatable along the spline shaft, and a drive shaft that is operably coupled with the drive gear assembly and is adapted to rotatably engage an atherectomy burr.
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