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controlled deformation catheter

A catheter and body technology, applied in the field of controlled deformation catheters, can solve problems such as catheter restrictions

Inactive Publication Date: 2018-07-06
乔阿奇诺·戈比
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In practice, this impossibility of shape adaptation constitutes a significant limitation to the application of said catheters

Method used

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Embodiment Construction

[0017] Elements or parts of elements common to the embodiments described below will be denoted by the same reference numerals.

[0018] Referring to the above-mentioned figures, reference numeral 4 generally indicates a catheter comprising a catheter body 8 extending from a proximal end 12 to a distal end 16 in the longitudinal direction X-X.

[0019] The catheter body 8 is a hollow tubular body defining at least one lumen 20 .

[0020] For the purposes of the present invention, the catheter body 8 may have a varying geometry; for example, the catheter body 8 may have a hollow circular section or even a hollow elliptical / oval section with respect to a section plane perpendicular to said longitudinal direction X-X .

[0021] As described further below, the section of the catheter body 8 also depends on the length and inclination of the ribs 40 embedded in said body.

[0022] The catheter body 8 comprises a core 24 embedded inside a flexible outer covering 28 . In other words...

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Abstract

A catheter (4) includes a catheter body (8) extending from a proximal end (12) to a distal end (16) along a longitudinal direction (X-X), wherein the catheter body (8) includes a flexible outer a core (24) within the outer coating (28), the catheter body being a hollow tubular body defining at least one lumen (20), wherein the core (24) includes a plurality of pairs of ribs (40) extending within the outer coating (28), wherein the ribs (40) extend from the attached ends (44) where the ribs are connected to each other to a free end (48) opposite the attached end (44), and wherein the lines connecting the attached ends (44) of the plurality of pairs of ribs (40) Defines the dorsal side (36) of the catheter body (8). The free ends (48) of the ribs (40) coupled in the same pair of ribs are separated from each other, thereby defining at least one discontinuity (52) of the rib (40), the discontinuity (52) being positioned opposite the dorsal side (36) ventral side (56), wherein a first plane (P) is defined perpendicular to the longitudinal element (32) and through the attachment end (44) of the rib (40), and a second plane (Q) is defined as Through the free end (48) and the attached end (44) of the same rib (40), the planes (P, Q) are inclined to each other, forming an acute angle (A) on the proximal (12) or distal (16) side .

Description

technical field [0001] The present invention relates to a controlled deformation catheter, and in particular to a catheter adapted to change the cross-section of the inner lumen so as not only to allow passage therethrough of other catheters, dilators and / or instruments of various types, but also to allow It is deformed for insertion of another catheter, such as for example a guide catheter. Background technique [0002] Catheters used in the human body (especially vascular catheters for angioplasty and stenting) require support for axial movement (pushability) and rotation (torqueability), and flexibility to move along the arterial tree and The vein travels up, for which the catheter is usually made of a metal core covered with a plastic material. [0003] Current standard catheter cores consist of mesh sheets, or for maximum flexibility, coil cores. In both cases, the catheter has a predetermined diameter, making it impossible to adapt to the possible, even very small, d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M25/00
CPCA61M25/0051A61M25/0052
Inventor 乔阿奇诺·戈比
Owner 乔阿奇诺·戈比
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