The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 10, 2021
Filed:
Feb. 14, 2018
Tevar (Pty) Ltd, Cape Town, ZA;
Peter Paul Zilla, Cape Town, ZA;
Deon Bezuidenhout, Cape Town, ZA;
Edward Charles Teddy Mudge, Cape Town, ZA;
Tevar (Pty) Ltd, Cape Town, ZA;
Abstract
A dilatation deviceincludes a supportand at least one inflatable tube. The inflatable tube is wound helically around the support and also defines a series of inflatable zonesalong its length, with successive inflatable zones spaced by an intermediate zonethat is more resistive to radial expansion than the inflatable zones. The inflatable tube further defines a fluid inletfor: introducing fluid to inflate the inflatable zones; and extracting fluid from the inflatable tube to deflate it, with each inflatable zone being in fluid communication with its successive inflatable zones via the intermediate zones. The axial critical buckling load of the inflatable zones is less than the radial critical buckling load of the inflatable zones, to cause the inflatable zones to concertina axially when the inflatable tube is depressurized, thereby causing the intermediate zones to displace towards each other.