Wire guided dilator device

Details Wire guided dilator device Wire guided dilator device

1985-09-26

1988-02-23

Apley, Richard J.

Surgery

Truss

Pad

1283481, 128341, A61M 2900

Patent

active

047263733

ABSTRACT:
The dilator has a central bore for a guide wire and a flexible distal portion merging continuously with an intermediate portion of constant cross-section. A proximal portion is convex in profile and merges continuously with the intermediate portion. The distal portion comprises a hemispherical tip followed by a conical section, a concave section and a convex section, respectively. The dilator is primarily for dilating oesophageal strictures when used in conjunction with an endoscope to place the guide wire and is urged along the wire using a threadably engaged insertion rod.

REFERENCES:
patent: 3638655 (1972-02-01), Doherty
patent: 3880168 (1975-04-01), Berman
patent: 4307722 (1981-12-01), Evans
patent: 4323071 (1982-04-01), Simpson et al.
patent: 4564014 (1986-01-01), Fogarty et al.

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