A rotational atherectomy device
EP4586930A1Pending Publication Date: 2025-07-23CLEASTREAM TECH LTD
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Patent Information
- Application Number
- EP2022789172
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2022-09-13
- Publication Date
- 2025-07-23
AI Technical Summary
Technical Problem
Existing rotational atherectomy devices with fixed-diameter abrasive heads require multiple axial passes to treat larger blood vessels, making the procedure longer and more complex.
Method used
A rotational atherectomy device with a rotatable inner shaft and spring-biased blades that can be radially expanded, allowing controlled and precise expansion to accommodate vessels of different sizes, featuring a rotatable outer shaft to reduce friction and a control unit for precise speed and expansion control.
Benefits of technology
Enables faster and more effective plaque removal with reduced vessel damage by allowing fewer axial passes and precise blade expansion, improving treatment efficiency for larger vessels.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 1.1
Abstract
A rotational atherectomy device for cutting or abrading tissue. The atherectomy device comprises a rotatable inner shaft having a longitudinal axis, a plurality of blades connected to the distal end of the rotatable inner shaft through a spring mechanism which biases the plurality of blades radially outward, and an outer shaft disposed over the rotatable inner shaft. The rotatable inner shaft is longitudinally moveable with respect to the outer shaft, and distal movement of the inner shaft with respect to the outer shaft moves the plurality of blades from a radially contracted configuration to a radially expanded configuration.
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