04589868 is referenced by 182 patents and cites 4 patents.

A device capable of being used as both a dilator and catheter is presented. The dilator-catheter is comprised of an expandable housing having an interior wall and exterior wall with a space therebetween. A longitudinal cavity is provided through the housing, the cavity being defined by the interior wall. A preferably disc-shape retaining means is provided as an integral portion of the housing. The disc retainer is capable of greater relative expansion than the rest of the housing. Access means are also provided whereby any fluid, including air or liquid, may be delivered to the housing whereupon the entire housing will expand accordingly.

Title
Expandable dilator-catheter
Application Number
6/588282
Publication Number
4589868
Application Date
March 12, 1984
Publication Date
May 20, 1986
Inventor
Stephen P Dretler
172 Cochituate Rd., Wayland, 01778
MA, US
Agent
Fishman & Dionne
IPC
A61M 25/00
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