Bend-limited catheters

a catheter and catheter technology, applied in the direction of balloon catheters, catheters, guide wires, etc., can solve the problems of lower flexibility and decrease the strength of the catheter

Pending Publication Date: 2022-02-17
PIPE THERAPEUTICS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a type of catheter that can be used in medical procedures. The catheter has interlocking teeth that increase smoothness and flexibility without compromising its strength. The catheter can be bent without getting stuck or cutting through other devices. The size and spacing of the interlocking teeth can be adjusted to balance flexibility and smoothness. The catheter can be rotated to control its bending angle. The technical effects of this invention are improved maneuverability and access to target regions in the body, making it easier to perform medical procedures safely and efficiently.

Problems solved by technology

Unfortunately, smaller number and / or heights for the interlocking teeth typically results in lower flexibility and may decrease the strength of the catheter.

Method used

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  • Bend-limited catheters

Examples

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Embodiment Construction

[0121]Described herein are bend-limited catheters (e.g., apparatuses, including devices and systems) and methods of using them. A bend-limited catheter as described herein is typically freely bendable at angles greater than the locking bend angle, e.g., when the bend radius is less than the locking bend radius; the device will typically limit or prevent bending beyond the locking bend angle. Thus, the device may be configured to bend freely in a direction out of a long axis of the catheter device without requiring a substantial amount of force, such as by applying less than a few grams of force when bending below the locking bend angle. For example, the lateral stiffness of the catheter (or of a bendable but bend-limited region of the catheter) may be less than Z grams (e.g., where Z is 150 g, 125 g, 100 g, 75 g, 50 g, etc.) when the bend angle of the region is below the bend locking angle. This may also be described as when the bend radius is greater than the locking bend radius. W...

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Abstract

Described herein are bend-limited catheters (e.g., apparatuses, including devices and systems) and methods of using them. These apparatuses may include an elongate tubular body that has one or more cut-out kerfs forming a pattern of interlocking teeth that are arranged in rings (and / or one or more spiral patterns) around the perimeter of the elongate tubular body. The pattern of interlocking teeth is configured to provide the catheter with a high degree of flexibility in bending, while permitting the device to lock at a locking diameter when the catheter bends to a minimum locking angle, beyond which no further bending is permitted.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This patent application is a continuation of U.S. patent application Ser. No. 16 / 273,135, filed Feb. 11, 2019, titled “BEND-LIMITED CATHETERS,” now U.S. Patent Application Publication No. 2019 / 0247622, which claims priority to U.S. Provisional Patent Application No. 62 / 629,069, titled “SUPPORTIVE CATHETER,” filed Feb. 11, 2018 and U.S. Provisional Patent Application No. 62 / 651,049, titled “SUPPORTIVE CATHETER,” filed on Mar. 30, 2018, each of which is herein incorporated by reference in its entirety.INCORPORATION BY REFERENCE[0002]All publications and patent applications mentioned in this specification are herein incorporated by reference in their entirety to the same extent as if each individual publication or patent application was specifically and individually indicated to be incorporated by reference.FIELD[0003]Catheter devices and methods for using them for insertion into the body during medical procedures that are loose and flexible...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): A61M25/01A61M25/09
CPCA61M25/0152A61M25/10A61M2025/09125A61M25/09A61M25/0051A61M25/0053A61M25/0113
InventorROMANO, JOHN-PAUL
OwnerPIPE THERAPEUTICS LLC