catheter with active return bend

By employing a molded traction line design in the deflectable shaft conduit, and utilizing the cooperation of the fixing components and the deflection assembly, the active return of the conduit during deflection configuration is achieved. This solves the problem of the conduit's inability to effectively recover after the release of the control components, thus enhancing the functionality and controllability of the conduit.

CN114126706BActive Publication Date: 2026-05-26MEDTRONIC INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
MEDTRONIC INC
Filing Date
2020-07-14
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing deflectable shaft guides have difficulty effectively and actively returning to their initial configuration when the control components are released. This may be due to the elastic or plastic deformation of the slender components, which may cause the deflection state to loosen or fail to fully recover.

Method used

The design employs a traction line with a molded distal and/or proximal end, enabling active return via a single traction line. By utilizing the cooperation of fixing components and deflection assemblies, it ensures that the catheter can actively return to its initial configuration when deflected.

Benefits of technology

It achieves stable and active return of the catheter during deflection configuration, enhances the functionality and controllability of the catheter, and avoids problems such as loosening or incomplete recovery caused by deformation.

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Abstract

An active return bend deflectable conduit (100) includes an elongated member (102), a retaining member (122), a deflection assembly (104), and a traction line (126). The retaining member is coupled to a distal portion of the elongated member. The deflection assembly includes a hub assembly coupled to a proximal end of the elongated member, a handle, and a control member. The traction line extends from the control member through the hub assembly to the retaining member. The elongated member is configured to deflect from an initial configuration to a deflected configuration in response to a traction force applied to the traction line by actuating the control member in a first direction.
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