Delivery System with Torqueable Catheter Shaft
Summary
USPTO granted Patent US12594400B2 to Medtronic, Inc. on April 7, 2026. The patent covers a delivery system with a torqueable catheter shaft design featuring multiple polymer layers with varying stiffness, tubular braid components, and hypotube configurations for improved torque transmission. The patent contains 20 claims.
What changed
USPTO granted Medtronic patent protection for a delivery system with a torqueable catheter shaft. The invention includes a proximal portion with a first polymer and tubular braid component, an intermediate portion with a second polymer, and a distal portion with a third polymer, tubular braid, and hypotube with patterned sidewall cuts. The design allows for elastic deformation and improved torque transmission along overlapping segments.
Medical device manufacturers developing catheter-based delivery systems should review this patent when designing torqueable shaft technologies. Competitors in interventional cardiology, neurology, and other catheter applications should assess potential infringement risks and freedom-to-operate implications for their existing and pipeline products.
Archived snapshot
Apr 17, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
Delivery system with a torqueable catheter shaft
Grant US12594400B2 Kind: B2 Apr 07, 2026
Assignee
MEDTRONIC, INC.
Inventors
Alan McGuinn, Niall Duffy
Abstract
A catheter shaft includes a proximal portion with a first polymer having a first stiffness and a first portion of a tubular braid component extending within the first polymer, an intermediate portion with a second polymer having a second stiffness and a second portion of the tubular braid component extending within the second polymer, and a distal portion with a third polymer having a third stiffness, a third portion of the tubular braid component extending within the third polymer, and a hypotube extending within the third polymer. The hypotube is configured for elastic deformation and includes a sidewall cut with a pattern. Along an overlap segment of the distal portion, the third portion of the tubular braid component and the hypotube overlap each other. The outer shaft is configured for improved torque transmission.
CPC Classifications
A61M 25/0053 A61M 25/0136 A61M 25/0147 A61M 2025/1061 A61M 2205/583 A61M 25/0051 A61M 25/0138 A61M 25/0054 A61M 25/10 A61M 25/0045 A61F 2/2433 A61F 2/958
Filing Date
2021-12-20
Application No.
18253988
Claims
20
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