Balloon catheter with fortified proximal infusion outlet port, and manufacturing thereof

Abstract

Infusion balloon catheter (100, 200) with fortified proximal infusion outlet port (106, 206), and a manufacturing thereof are provided. The infusion balloon catheter includes: inflatable balloon member (102, 202); shaft (101, 201) having distal end (103, 203) attached to balloon member, and shaft wall enclosing: first lumen (104, 204) providing passage to balloon inflation fluid, and second lumen(105, 205) providing passage to infusion fluid and guidewire (GW); and bending-resistant insert member (107, 207, 300a-f, 400a-b) housed in second lumen and located proximally to balloon member, insert member is affixed to, and conforms to shape of, shaft inner wall surface, and includes one or more opening(s) (108, 208). Shaft wall has infusion outlet port located along, and providing opening to,second lumen proximally to balloon member. Insert opening(s) is / are in direct fluid communication with infusion outlet port whose cross-sectional area is larger than that of infusion inlet opening. Bending-resistant insert member provides fortifying structural support to shaft wall portion surrounding infusion outlet port. Applicable to medical procedures involving injection of imaging contrast material or / and drugs.

Description

[0001] Related application [0002] This application requires the rights and interests of U.S. Provisional Patent Application No. 62 / 184,536 filed on June 25, 2015 under the title of "BALLOONCATHETER WITH FORTIFIED PROXIMAL INFUSION OUTLET PORT" under Section 119(e) of Section 35 of the United States Code. The content is incorporated herein by reference in its entirety. Technical field [0003] The present invention relates to an infusion balloon catheter in some of its embodiments, and more specifically, but not exclusively, to an infusion balloon catheter having a reinforced (enhanced) proximal infusion outlet port and a method of manufacturing the same. Some embodiments of the present invention are particularly suitable for use in applications involving or related to dialysis procedures in which imaging contrast materials are injected into the bloodstream of a subject. Background technique [0004] During dialysis-related procedures, a standard syringe is usually used to manuall...

AI Technical Summary

Problems solved by technology

[0006] Another difficulty that can arise during catheter infusion is resistance to flow of the infused material, such as imaging contrast material